2025 Audi A6

The 2025 A6 is the final US model year of the C8 generation (the all-new C9 arrives as a 2026 car), and its volume configuration is the 45 TFSI quattro — a 2.0L turbo four with 12V mild-hybrid assist rated at 261 hp, standard on the $58,100 Premium and Premium Plus. The optional 3.0L V6 55 TFSI lifts that to 335 hp, and the separately sold S6 to 444 hp.

The 45 TFSI's 2.0L turbo four peaks at 273 lb-ft, mid-pack torque for a mid-size luxury sedan and well short of the 369 lb-ft the optional V6 delivers. Torque arrives low and flat, which suits the car's relaxed brief more than the headline number suggests.

The 45 TFSI quattro runs 0–60 mph in about 5.8 seconds (Audi's European claim is 6.0 s to 62 mph), brisk enough for the class without being quick — the V6 55 TFSI is roughly seven tenths faster. Corroborating figures cluster tightly between 5.7 and 6.0 s, so the value is solid even though no first-party US instrumented test was retrievable.

The 2.0T itself is quiet and smooth in the C8's well-isolated cabin, and the mild-hybrid system smooths stop-start restarts, but the engine is asked to move a heavy AWD luxury sedan and needs revs to do it. Reviewers describe adequate rather than effortless delivery, with off-boost softness low in the rev range — comfortably mid-band, not the seamless response of the V6 or of the 2026 car's 362-hp six.

The 7-speed S tronic dual-clutch shifts crisply and decisively once underway and is genuinely quick in Dynamic mode, but its low-speed manners are the C8 A6's most consistently criticized dynamic trait — Consumer Reports singles out launch and rolling-stop hesitation, and owners report noticeably lazier shift timing in Comfort and Eco. That is squarely the middle band, and below the 2026 C9's better-reviewed unit.

Every 2025 US A6 is a quattro — there is no front-drive version at any price — which puts it in the top band on availability. It sits a notch under the 2026 car because the volume 45 TFSI uses quattro ultra, an on-demand system that decouples the rear axle for fuel economy, rather than the V6's permanent self-locking centre differential; a sport differential and wheel-selective torque control are available higher up.

2025 is the broader of the two bookend years: the A6 sedan offers a genuine choice of two engines — the 261-hp 2.0T 45 TFSI and the 335-hp 3.0T V6 55 TFSI — with the 444-hp twin-turbo S6 above them in its final US model year. All of it is conventional gasoline, though; the only electrification is 12V/48V mild-hybrid assist, and there is no hybrid, PHEV or BEV wearing the A6 sedan badge, against a 5 Series family that spans 530i / 530e / i5. Two mainstream choices, no electrified option — the middle band.

EPA rates the volume 45 TFSI quattro at 26 MPG combined — a respectable figure for a standard-AWD mid-size luxury sedan, and three better than the 2026 C9's V6-only 23 MPG, but modest against hybridized rivals in the segment. The optional V6 gives up only one MPG, at 25 combined.

24 MPG in town is decent for a turbocharged AWD luxury sedan and benefits from the mild-hybrid system's extended stop-start, but the 12V MHEV cannot move the car on electricity, so urban economy trails any full hybrid in the class by a wide margin.

31 MPG on the highway is the A6's best efficiency showing, helped by a slippery body, a tall seventh gear and the quattro ultra system decoupling the rear axle at steady cruise. It is nonetheless mid-pack for the segment's four-cylinder entries and the weakest of the three EPA numbers relative to the sedan band.

A 19.3-gallon tank at the EPA's 26 MPG combined gives roughly 500 miles of mixed-driving range — genuine long-haul touring capability, and the strongest element of this category, offsetting the merely average economy. The figure is derived from the published tank size and EPA combined rating rather than a manufacturer range claim.

EPA puts the annual bill at $2,900 for the 45 TFSI — high for a sedan despite the reasonable 26 MPG, because the premium-fuel requirement compounds every gallon. EPA also estimates $3,500 more spent on fuel than the average new vehicle over five years.

Both A6 engines are premium-only (91 AKI), a requirement rather than a recommendation, which adds roughly 40–60¢ per gallon over regular and is what drives the annual cost estimate above the segment norm. There is no flex-fuel, diesel or plug-in variant of the 2025 A6 sedan, so a buyer has no way to lower the energy bill within the model.

NHTSA tested the 2025 A6 Sedan directly and awarded 5 stars overall, with 5 stars in every side test and rollover and 4 stars frontal — the frontal result is the only thing keeping it off a clean sweep.

Every IIHS test the C8 A6 has actually taken comes back Good — small overlap front on both driver and passenger sides, moderate overlap front (original protocol), headlights on both variants — but the 2025 car carries no award because it was never run through the updated moderate overlap and updated side tests that the 2025/2026 criteria require. All-Good-but-untested is a strong result short of an award, not a TSP-equivalent one.

The volume Premium 45 TFSI ($58,100, $59,395 with destination) has Audi pre sense front AEB with pedestrian detection, lane departure warning and prevention, newly standard traffic-sign recognition, front and rear parking sensors and a rearview camera — but adaptive cruise, side assist blind-spot monitoring, rear cross-traffic alert and the surround-view camera all sit behind the $2,300 Convenience Plus package on that trim. On a $58k luxury sedan in 2025, charging extra for blind-spot monitoring is a real gap against rivals that make the full suite standard.

IIHS rates the standard pre sense front system Superior in daytime pedestrian front crash prevention — it avoided the collision outright at 25 mph in both the crossing-child and parallel-adult scenarios. It has never been run through the harder updated vehicle-to-vehicle 2.0 test or a nighttime pedestrian evaluation, so top-band performance under current protocols is unproven rather than demonstrated.

Audi side assist pairs mirror-mounted blind-spot warning with rear cross-traffic alert and pre sense rear exit warning, and it is competent alert-based coverage — but it is optional on the volume Premium (bundled into Convenience Plus) rather than standard, and rear automatic braking is a further option. It is available across the range, which keeps it in the middle band rather than the bottom.

Lane departure warning and prevention are standard on every trim, and the C8's active lane assist centering — unlike the criticized system in the 2026 redesign — is described by reviewers as tracking cleanly without ping-ponging. The centering half is optional equipment though, arriving only with Convenience Plus on Premium or the Driver Assistance package above it.

Adaptive cruise with stop & go, combined with active lane assist as Adaptive Cruise Assist, is a well-sorted highway system on the C8 — smooth gap-keeping and reliable traffic-jam operation. What holds it out of the top band is availability rather than behavior: the volume Premium needs a $2,300 package to get it at all, and the full Driver Assistance package with pre sense plus and top/corner-view cameras is restricted to Premium Plus and Prestige.

Audi offered no hands-free highway driving on the 2025 A6 in the US — there is no BlueCruise, Super Cruise or FSD-Supervised equivalent anywhere in the option book. Every assist is hands-on and driver-monitored.

Both headlight systems offered on the 2025 A6 rate Good from IIHS, so every trim from base Premium to Prestige gets top-rated lighting with high-beam assist — no trim penalty and no need to buy up. Right-side and sharp-curve visibility rate only Fair within the Good result, which is the one soft spot.

Forward and side sightlines are typical mid-size-sedan good, but the C8's thick C-pillars and shallow rear window cut the over-the-shoulder and rearward view, and the surround-view camera that would compensate is optional on the volume Premium — that trim ships with the plain rearview camera plus front and rear parking sensors.

IIHS rates the A6's LATCH ease of use Good — its top mark — with two outboard positions carrying complete hardware and a third tether-only position. Mid-size sedan bench width still makes three seats across impractical, which is what keeps it below the very top of the band.

The C8 A6 sedan seats five in every US trim and engine combination; there is no four-seat or executive-rear configuration in this market. The centre rear position is compromised by a tall transmission tunnel — quattro is standard — so it is a short-trip seat in practice.

38.0 in of front headroom is exactly mid-band for a sedan. The panoramic sunroof is standard equipment on every US A6, so there is no higher no-sunroof figure to quote — this is what every buyer actually gets, and it is the one interior dimension where the outgoing C8 trails the 2026 C9's 40.0 in.

41.3 in sits in the lower third of the mid-size sedan band — a long-standing Audi packaging trait carried straight over into the 2026 C9, which publishes the same figure. Reviewers still describe the front cabin as spacious, so the number understates how it feels, but a 6'4" driver will find the seat travel merely adequate rather than generous.

38.1 in of rear headroom is in the upper part of the sedan band and unusually is a tenth more than the front measurement — the C8's roofline stays high over the second row before it drops. It comfortably clears six-footers in back, which is the strongest of the A6's five passenger-space specs.

37.4 in on a 115.1 in wheelbase is mid-pack: adults fit properly for commutes and medium trips, and it is fractionally better than the 2026 C9's 37.2 in, but the A6 does not offer the rear sprawl of a Genesis G80 or a long-wheelbase E-Class. Consumer Reports still rates the rear seat comfortable and supportive for long trips.

13.7 cu ft is a little below the mid-size sedan average and the practical ceiling on the A6's family and road-trip missions — two large suitcases plus soft bags, not four. It is two tenths larger than the 2026 C9's trunk, so the redesign did not improve on it. A 40/20/40 split-folding seatback with a centre pass-through extends it for long items.

Competent and conventional rather than clever: usefully deep door bins, a lidded console cubby, a covered front tray that houses the wireless charger on trims that get one, a decent glovebox and a 40/20/40 rear seatback with a ski pass-through. There is no standout innovation — no underfloor bin, no reconfigurable console, no onboard household power — and the second display occupies console real estate that rivals give over to storage.

One of the C8's genuine strengths and directly corroborated by an instrumented road test: Consumer Reports rates both rows comfortable and supportive even for long trips. Heated power front seats with leather are standard on the base Premium, and the volume Premium Plus adds ventilated fronts and heated rears, so the seats a typical buyer gets are well equipped as well as well shaped.

Composed but firm, and Consumer Reports names it as the specific reason the A6 misses top honours in the class: the suspension absorbs pothole impacts well and the body stays steady, but road texture reaches the cabin on the standard steel-spring setup. Adaptive air suspension transforms it and is genuinely plush, but it is an option most buyers do not take, so the volume car scores in the upper-middle band rather than the top.

Wind and road noise are well suppressed — the C8 shell with acoustic glass is a hushed highway place — but the volume 45 TFSI's four-cylinder is audible under load and Consumer Reports explicitly calls it less polished than the V6. That engine note is what keeps it below the 2026 C9, which added roughly 30% more insulation and foam-filled tyres.

A rich standard set even at the entry point: heated power front seats, leather, tri-zone automatic climate, panoramic sunroof and ambient lighting on the base Premium. The volume Premium Plus adds ventilated front seats, heated rear seats and four-zone climate, and the Prestige adds a heated steering wheel and wireless charging. Only the fact that ventilation and rear heat cost a trim step keeps it out of the top band.

2025 is the final US model year of the C8 A6, and its entry point is the 45 TFSI quattro Premium at $58,100 plus $1,295 destination. That is $6,000 below where the all-new C9 opens for 2026, because the 2025 lineup still offers a four-cylinder entry engine while the 2026 car is V6-only. Far above the sedan band ceiling either way.

KBB identifies the 45 TFSI in Premium Plus trim as the most popular 2025 A6 configuration; it lists at $62,800 + $1,295 destination = $64,095, and most cars leave with metallic paint (~$595) and minor accessories, putting typical as-equipped transactions near $64,700. Note that real transaction prices sat well below this in 2025 thanks to a $6,000 run-out bonus.

CarEdge's A6-specific projection is $3,228 in maintenance over five years ($646/yr), and the 4yr/50k bumper-to-bumper warranty absorbs most repair exposure inside the window. Set above that figure because the 2025 model year predates Audi Signature Care — every scheduled service from the first interval onward is out of pocket unless the owner prepays Audi Care — and because German dealer labor rates and the 7-speed S tronic dual-clutch add repair risk in years four and five.

Three sources disagree and the truth sits between them: KBB projects the 2025 A6 specifically at $21,636 residual on a $59,395 sticker (36%), iSeeCars observes 44.4% retained for this actual C8 generation, and CarEdge's nameplate-level model says 51.1%. Weighted toward the observed C8 figure and pulled below CarEdge because 2025 is a run-out year sold on $6,000 hoods — heavy launch-year incentives are exactly what depresses a residual, and the ALG award that lifts the 2026 car reflects the C9's disciplined pricing, not this one.

Standard Audi New Vehicle Limited Warranty, unchanged for 2025 and identical to the 2026 car's. Matches BMW and Mercedes at 4/50; behind Genesis and Jaguar at 5/60.

Audi has offered no standalone longer powertrain warranty since MY2020, so powertrain coverage expires with the 4/50 bumper-to-bumper term. That falls below the bottom of the 5–10 year scoring band and far short of Hyundai/Kia/Genesis 10-year coverage — the A6's weakest ownership metric, and one that matters more here than on the 2026 car because the C8's dual-clutch is the drivetrain owners most often flag.

The 2025 A6 gets no complimentary scheduled maintenance at all — Audi Signature Care, which makes the first 3 years/30,000 miles of service free, was announced on 21 August 2025 for 2026 model year vehicles only, and MY2025 owners must buy an Audi Care prepaid plan (10,000–40,000 mile services) instead. What is included is 4 years of Audi 24-Hour Roadside Assistance, 12-year/unlimited-mile corrosion coverage, and connected-services trials. Roadside-only coverage with zero included maintenance sits at the top of the 'no complimentary coverage' band; the 2026 car scores nearly twice as high on this item purely because of that program change.

$64,700 volume-trim price minus its estimated resale value after 5 years (43% retained, or about $27,821) leaves about $36,879 in depreciation. Add the projected $4,400 in 5-year maintenance and repairs, and owning this vehicle for 5 years costs about $41,279 in total.

Consumer Reports predicts about-average reliability for the 2025 A6, and 2025 is the final model year of the mature C8 generation (2019–2025) in the US — the new C9 A6 did not reach US showrooms until the 2026 model year — so the powertrain and electronics are seven years into field service rather than freshly launched. Held just below the sedan median because the prediction rests substantially on the Audi brand score, which is deteriorating sharply, and because the nameplate's own complaint profile is concentrated in electrical/software.

Audi's recent multi-year dependability standing is bottom-third, not mid-pack: it finished dead last of all brands in the 2025 J.D. Power Initial Quality Study and sits far below average in the 2025 Vehicle Dependability Study, behind both BMW and Mercedes-Benz. Infotainment and software complaints drive most of the deficit rather than mechanical failure, which is the only reason this is not scored lower.

The C8 generation carries a substantial campaign history — 14 NHTSA recalls span 2019–2025 A6 vehicles — though the 2025 model year itself is caught by only a small subset and nothing systemic to the powertrain. The recurring theme is software: instrument-panel display failure and lane-departure-warning deactivation are both software-error campaigns, matching the electrical/safety-system concentration in the complaint data and Audi's IQS problem profile.

The volume 45 TFSI pairs the 2.0L EA888 turbo four (261 hp/273 lb-ft) with the DL382 7-speed S tronic wet-clutch DCT and a belt-driven starter-generator mild hybrid — all long-serving VW Group hardware with high-mileage track records and no systemic failure pattern. Discounted from the top band for well-documented maintenance liabilities rather than fragility: direct-injection carbon buildup requiring periodic walnut blasting, water pump/thermostat replacement, and the BSG as an extra failure point (subject of an earlier 2019–2020 campaign).

The C8 cabin remains a segment benchmark for material richness at this price — substantial-feeling surfaces, dual-pane acoustic glass, and detailing reviewers consistently call premium. Kept out of the top band because by its final model year the design is aging against newer rivals and the twin haptic touchscreens attract fingerprints and smudging, and some owners report early wear on high-touch console and door surfaces.

Physical assembly is a strength — reviewers report tight panel gaps, consistent finish and a rattle-free, well-damped cabin from the Neckarsulm line — but this item's guidance names initial-quality reports explicitly, and Audi ranked last of every brand in the 2025 IQS. Because the bulk of that deficit is infotainment and controls rather than build defects, the item sits in the upper-middle band rather than falling to the brand score.

Audi's US retail network is the smallest of the German three — roughly 310 stores against BMW's ~370 and Mercedes-Benz's ~385 — which leaves thinner coverage outside metro areas for a car whose software-heavy problem profile makes dealer visits more likely. Service satisfaction is adequate rather than distinguishing: Audi does not appear among the premium leaders in J.D. Power's customer service index.

Running costs are typical for a German luxury sedan — below the luxury-class average but well above the all-vehicle average — and parts are European-premium priced with most diagnostics and software work channelled through the dealer. Aftermarket support for the C8 is reasonable by now, which keeps this in the lower half of the normal band rather than the bottom one, but the MHEV belt starter generator, DCT service and haptic-screen electronics are all dealer-cost items.

The C8's MMI touch response layout splits the job across two screens — a 10.1 in upper display for navigation, media and phone and an 8.6 in lower display for climate and text input — both standard on every trim. Scored on the 10.1 in centre display, it lands in the bottom third of the sedan band and is the single clearest sign of the C8's age against the 2026 C9's 14.5 in OLED panel.

MMI touch response is quick, logically organised and confirms every input with a haptic click and an audible tick, so it is more usable than most all-touch systems — Consumer Reports lists the easy-to-use infotainment among the reasons the A6 ranks near the top of its class. It loses ground for moving climate control onto a second screen that forces the driver's eyes down, and for gloss-black surfaces that show fingerprints and throw reflections in sunlight.

Wireless Apple CarPlay and Android Auto are standard on every 2025 A6 trim including the base Premium — no package, no upper-trim gate — which is the top band. It is held just short of a perfect score because the projected display is confined to the 10.1 in upper screen rather than spanning the cluster the way some rivals allow.

MMI Navigation plus is standard on every trim — not an option as on many rivals — and pairs cloud-connected Audi connect traffic and search with a natural-language voice assistant that handles conversational requests such as 'I'm cold' or free-text destination entry. Map data refreshes four times a year, optionally over the air. It is very good rather than best-in-class: the assistant is less conversational than Mercedes' MBUX and many owners still default to phone projection.

The volume Premium Plus trim ships with the Bang & Olufsen 3D premium system as standard equipment rather than a several-thousand-dollar option, and the 16-speaker configuration is consistently praised for clarity and staging. The base Premium's ten-speaker system is merely competent, which is the only thing keeping this out of the very top band.

The 12.3-inch Audi Virtual Cockpit is standard on all three trims — Audi has led the segment on digital clusters since 2015 and the C8 keeps that lead — with multiple layouts including a full-screen navigation map controlled from the steering wheel. Crisp, configurable and standard, it is squarely top-band; only the newer 11.9-inch panel in the 2026 car reads a touch sharper.

The C8's MMS architecture predates whole-vehicle over-the-air updating. Audi delivers map data and some Audi connect service content over the air — four map updates a year — but infotainment software revisions and any vehicle-control module updates go through the dealer, and there is no Functions-on-Demand feature purchasing as on the 2026 E3-architecture car. That is squarely the maps/infotainment-only middle band.

myAudi covers the expected set — lock/unlock, vehicle status, locate, send-to-car destinations, and remote start on equipped cars — and the Audi connect key adds NFC phone-as-key on Android. Two things hold it to the middle band: the useful functions sit behind an Audi connect PRIME/PLUS subscription after the trial, and remote start can require dealer enablement, so a buyer cannot assume the feature works out of the box.

Both rows get USB-C — two up front and two for rear passengers — which is more than many 2025 rivals still managed, and there is a 12V socket in the trunk. But the wireless charging pad is trim-gated to the Prestige rather than standard on the volume car, there is no household outlet or onboard inverter, and no rear wireless charging. Adequate, not abundant.

Proximity keyless entry with push-button start is standard on every trim along with remote trunk release and a power tailgate, and Audi connect key adds NFC phone-as-key. It stops short of the top band because the digital key is Android-only on the C8 — there is no Apple Wallet car key — and remote start runs through a subscription app rather than the key fob.

The volume Premium Plus gets the top-view surround camera system as standard alongside front and rear parking sensors and rear camera, and park assist is available — good coverage with clean image quality by 2025 standards. The base Premium makes do with the rear camera and sensors, which is the only reason this is not higher.

The head-up display is confined to the Prestige — the V6-only $73,350 flagship — so it is unavailable on either 45 TFSI trim, including the Premium Plus that most buyers actually take. The 2026 C9 fixed exactly this by making the HUD standard from Premium Plus, which makes the C8's restriction look like the top-trim gate the middle band describes.

IIHS rates the A6's LATCH ease of use Good — two outboard positions with complete hardware plus a tether-only centre — and 37.4 in of rear legroom leaves room behind a rear-facing seat. What holds it to the middle band is sedan geometry: a child goes down into the seat rather than across into it, and a 13.7 cu ft trunk with a high lift-over swallows a full-size stroller plus a grocery run only just.

The crash credentials are strong — NHTSA awarded the 2025 A6 Sedan five stars overall and every IIHS test the C8 has taken returns Good, including both headlight systems — and pre sense front AEB, lane departure warning and traffic-sign recognition are standard. But the features families lean on hardest are trim-gated: blind-spot with rear cross-traffic and adaptive cruise assist both require the Premium Plus step, and the entry point is $59,395, so 'the trims families actually buy' is not a cheap trim here.

The comfort axis is genuinely strong: Consumer Reports finds both rows comfortable for long trips, the Premium Plus adds heated rear seats and four-zone climate, rear passengers get two USB-C ports, and the cabin is quiet at highway speed. The limit is luggage — 13.7 cu ft with four aboard means soft bags on the rear seat for a week away, which is why this sits mid-band rather than high.

Quiet, well isolated and light to place, with standard quattro that removes weather from the equation and adaptive cruise assist on the volume trim. The one repeatable annoyance is exactly where a commuter meets it — Consumer Reports singles out the seven-speed dual-clutch's low-speed manners and hesitation from a standstill or rolling stop, and names low-speed behaviour as a reason the A6 misses the class win. Fine daily manners with a known irritation is the middle band.

26 MPG combined is respectable for a standard-AWD mid-size luxury sedan and three better than the 2026 C9 manages, but the 2.0T requires premium fuel rather than recommending it, which pushes the EPA's annual bill to $2,900. Add luxury-grade consumables — 19-inch performance tyres, Audi-specification service — and the per-mile cost of commuting in this car is well above class-average in absolute terms.

At 194.4 in long it is a big car for a tight garage, and the roughly 39 ft turning circle asks for an extra shuffle in a multi-storey — but it is meaningfully more wieldy than the 2026 C9, which grew to 196.8 in and 40.4 ft. The top-view camera standard on the volume Premium Plus, front and rear sensors and park assist do most of the work; the C8's thick C-pillars are the reason you need them.

A luxury sedan with no published US tow rating, no bed, no payload figure worth the name and a 13.7 cu ft trunk. The 40/20/40 seatback and pass-through help with long, thin items, but nothing about this car is a work tool. Scored in the low band as the item instructs rather than omitted.

The mechanical package is durable enough — the EA888 2.0T and quattro driveline are high-volume, well-proven hardware — but everything a work user touches resists abuse: standard leather, wood or aluminium inlays, two gloss-black touchscreens that mark with a dusty fingertip, and 4.2 in of ground clearance that rules out a rutted site. There is no fleet or work-duty reputation to lean on.

No bed, no factory roof rails, no US hitch offering, no onboard inverter or 110V outlet, and no upfit ecosystem of any kind. The trunk has a 12V socket and tie-down points and that is the whole inventory of work-oriented provisions.

This is the A6's best mission. A 19.3-gallon tank at 26 MPG combined gives roughly 500 miles between fills and closer to 600 at the highway rating — better than the 2026 C9 — the cabin is quiet, Consumer Reports rates both rows comfortable for long trips, and adaptive cruise assist takes the strain out of interstate miles. It falls short of the top band only for the firm standard suspension and the absence of any hands-free highway system.

Quattro all-wheel drive is standard on every trim with wheel-selective torque control and an available sport differential, which makes the A6 genuinely dependable on snow and a graded gravel road — the top half of the 'handles gravel roads fine' band. Beyond that the case runs out: 4.2 in of ground clearance, no tow rating for a bike or kayak trailer, no roof rails for a box, and on the volume 45 TFSI the quattro ultra system runs front-drive until slip is detected.

13.7 cu ft of well-shaped trunk with a 40/20/40 split-folding seatback and a centre pass-through in the armrest — enough for skis, a flat-packed box or a couple of golf bags, and marginally better than the 2026 car. But the trunk aperture is a sedan's, there are no roof rails or hitch to expand it, and bulky gear simply does not go in. Restrictive-to-adequate is the honest read.

Consumer Reports calls the A6's handling lively and sporty and rates it among the best mid-size luxury sedans it has tested — the car stays flat, quattro puts power down cleanly and the chassis is unflustered on a back road. It sits below the class benchmarks because the tuning is ultimately security-first: the A6 is composed and quick rather than adjustable, and it never invites the driver to work at it the way a 3 Series or G70 does.

Audi's standard progressive steering varies its ratio with lock — indirect around centre for stability at speed, quicker at larger angles for parking — and it is accurate and consistently weighted. What it does not do is talk: feedback through the rim is muted, and the assistance is light enough at low speed that the front tyres feel remote. Precise but numb is the definition of the middle band.

Consumer Reports' instrumented road test singles out the braking as superb, adding a measure of control and confidence — firm, progressive pedal and short, repeatable stops with no mild-hybrid regen weirdness, because the 12V system never intrudes on pedal feel. Strong and consistent, comfortably in the top band.

The engine itself is smooth and the 273 lb-ft plateau from 1,600 rpm makes for easy part-throttle progress, but the seven-speed S tronic dual-clutch is the C8 A6's most consistently criticised trait: Consumer Reports reports hesitation before launch and from a rolling stop, and owners describe lazy shift timing in Comfort and Eco. That is a repeatable calibration flaw in daily use, which is squarely the middle band.

At a cruise the 2.0T is effectively inaudible and vibration through the controls is nil, but worked hard the four-cylinder makes itself heard, and Consumer Reports explicitly rates its sound less polished than the optional V6's. Audible but inoffensive — a class-appropriate middle-band result rather than the near-silence the 2026 car's extra insulation buys.

At roughly 39 ft the C8 turns inside the 2026 C9's 40.4 ft but still sits near the wide end of the sedan band — a consequence of a 115.1 in wheelbase and a broad front track. Optional dynamic all-wheel steering shortens it noticeably, but it is not fitted to the volume 45 TFSI configuration. Confidence is MEDIUM because Audi USA does not publish a curb-to-curb figure for this model and the number comes from European specification aggregators for the C8.

A well-judged cockpit: power seats with wide adjustment range, a supportive shape Consumer Reports rates comfortable over long stints, a wheel that telescopes generously, and the important displays sited high in the driver's line of sight. Two things keep it out of the top band — climate control lives on the lower touchscreen, so a temperature change means looking away from the road, and the C8's thick C-pillars pinch the over-the-shoulder view.

Satisfying without being playful. The A6 is fast enough, grips hard and covers ground beautifully, but the 2.0T sounds ordinary, the steering keeps its own counsel and the dual-clutch's low-speed dithering undercuts the sense of a car eager to be driven. Enthusiasts who want an A6 to be entertaining are pointed at the S6, which was in its final US model year for 2025.

The base 45 TFSI Premium is well equipped for $59,395 — quattro all-wheel drive standard (there is no front-drive A6 at any price), leather front and rear, heated power front seats, a panoramic sunroof, three-zone climate, the 12.3-inch Virtual Cockpit plus the dual-touchscreen MMI with navigation, wireless phone integration, WiFi hotspot and 19-inch wheels. It falls short of the top band because adaptive cruise control is an option rather than standard, and ventilated seats, the top-view camera, Matrix LED headlights, head-up display and Bang & Olufsen audio all wait for Premium Plus or Prestige — a notch less generous at base than the 2026 C9, which makes ACC and ventilated seats standard.

At $59,395 delivered with standard quattro, the 45 TFSI Premium is priced against four-cylinder rear-drive rivals (BMW 530i, Mercedes E 350) that charge extra for all-wheel drive, and the run-out $6,000 customer bonus made real 2025 transaction prices genuinely competitive. Held to the middle band because the buyer is paying near-current money for the outgoing generation's cabin tech and a 261-hp engine reviewers openly advise stepping past, and because the option ladder is steep — the features that make the A6 feel like a $60,000 car mostly live above the base trim.

2025 is the broader of the two bookend years and beats its own 2026 replacement here: five sedan trim/engine combinations (Premium and Premium Plus with either the 261-hp 45 TFSI or the 335-hp 55 TFSI, plus a V6-only Prestige) spanning $59,395 to $76,645, with the 444-hp S6 above and the A6 allroad wagon alongside. Short of the top band only because every configuration is gasoline with mild-hybrid assist — no PHEV or EV wears the A6 sedan badge, against a 5 Series that spans four-cylinder, six, plug-in and the full-electric i5.

A slow seller in a shrinking segment, and 2025 was its weakest position: Audi moved 3,559 A6s in the US in the first half of 2025 against 13,432 BMW 5 Series — roughly a quarter of its closest rival — while buyers who would once have chosen this car moved to the Q5 and Q7. Audi's own US momentum compounded it, with North American deliveries down 12.2% for 2025 and both BMW and Mercedes outselling the brand by more than 100,000 units.

Audi remains a genuinely aspirational premium brand — design-led, tech-forward, with quattro as durable equity — and the A6 sits nearer the flagship end of the range than the A4/A5. Trimmed a point below the 2026 car's rating because 2025 was the year Audi's US volume visibly trailed BMW and Mercedes, and because a run-out model in its final year carries less showroom halo than a freshly launched one.

Scored on buyer benefit, and the run-out 2025 A6 was one of the better-discounted luxury sedans on the market: a $6,000 customer bonus applied to purchases and leases of both the 45 and 55 TFSI sedan, 3.99% APR financing, and advertised discounts reaching double-digit percentages off MSRP. Kept just below the ceiling precisely because these are clearance economics on a generation being replaced rather than sustainable incentives — the buyer wins, but the discount is a signal about residuals, which item 5.1.4 pays for.

The weakest item in the category and the defining fact about buying this car in 2025: it is the final US model year of the C8 generation launched for 2019, seven years old on a platform two generations behind Audi's newest, with its replacement not merely rumored but already unveiled — the C9 A6 reached US showrooms as a 2026 car with a new architecture, a 362-hp V6 and the MMI Digital Stage cabin. That is squarely 'aging generation with imminent replacement.'

Well reviewed but never the pick of the class — the textbook middle band. Consumer Reports rates it among the best midsize luxury sedans it has tested, praising class-leading fuel economy, lively handling, an easy-to-use infotainment system and an elegant cabin; KBB gives a 4.4 expert rating and ranks it #6 among Best Luxury Mid-Size Cars, with 80% of consumer reviewers recommending it. Against that, it wins no comparison tests in its final year, collected no 10Best or NACTOY nod, and reviewers consistently fault the dual-clutch's low-speed hesitation and advise buying past the base engine.