2023 Audi A6

2023 is a carry-over year in the C8 generation (2019–2024). The volume US trim is the 45 TFSI quattro Premium, whose 2.0L turbo four with 12V mild-hybrid assist makes 261 hp at 5,000 rpm; the optional 55 TFSI 3.0L turbo V6 raises that to 335 hp. That places the A6's entry engine mid-pack for a mid-size luxury sedan.

The 2.0T delivers 273 lb-ft (370 Nm) from just 1,600 rpm, so the A6 pulls willingly in everyday driving even though the peak figure is unremarkable next to the V6 alternative and against six-cylinder rivals.

Quattro traction and the dual-clutch's quick launch get the four-cylinder A6 to 60 mph in 5.8 seconds — brisk for a car of this size but a clear step behind the V6 version and behind six-cylinder rivals, which is exactly how reviewers describe the 45 TFSI's character.

The 2.0T with 12V mild-hybrid is quiet and smooth at cruise and the MHEV system covers stop-start restarts well, but reviewers consistently note a hesitation before the car gathers itself from a stop and describe the four-cylinder as merely adequate rather than luxurious in a car this size — enough to keep it in the upper-middle band, not the top one.

The seven-speed S tronic dual-clutch shifts crisply and decisively once underway and never hunts at speed, but its low-speed manners are the A6's most-cited powertrain complaint — creep and rolling-stop transitions are jerky and the car pauses before launching, a characteristic Audi DCT trait that reviewers single out for this generation.

Every US 2023 A6 is a quattro — there is no front-drive or rear-drive version at any trim or engine, so all-wheel drive is standard rather than an upcharge. The system is Audi's mature permanent quattro with a self-locking centre differential and wheel-selective torque control; a sport differential is available further up the range. No low range or terrain modes, which is appropriate for a sedan but caps the score below the ceiling.

US buyers get two distinct mild-hybrid gas engines — the 261-hp 2.0T 45 TFSI and the 335-hp 3.0T V6 55 TFSI — plus the separately badged 444-hp S6 above them, which covers mainstream needs but offers nothing electrified. The 55 TFSI e plug-in hybrid sold in Europe was never federalised, so unlike a 2023 BMW 5 Series (530i / 540i / 530e PHEV) or E-Class (E350 / E450 / E53 hybrid) the A6 gives a US shopper no plug-in or full-hybrid path.

EPA rates the 2023 A6 quattro with the 2.0L turbo four at 27 MPG combined. That is a solid figure for a standard-AWD luxury sedan and four MPG better than the C9 A6 that replaced it, but it lags hybridised rivals such as the Lexus ES 300h because the 12V mild-hybrid system cannot move the car on electricity.

24 MPG city is respectable for a roughly 4,000-lb sedan with permanent quattro AWD, with the 12V mild-hybrid extending stop-start and allowing brief engine-off coasting, but it is well short of what a full hybrid delivers in the same stop-and-go conditions.

31 MPG highway reflects the C8's slippery bodywork and a tall top gear in the seven-speed dual-clutch, and is the strongest of the A6's three EPA numbers — though only one MPG clear of the far more powerful V6, which posts 30.

The C8 A6's 19.3-gallon (73-litre) tank paired with 27 MPG combined gives roughly 520 miles of mixed-driving range, genuinely useful touring capability that offsets the premium-fuel bill on long trips. Confidence is MEDIUM because EPA publishes no range figure for gasoline vehicles and sources round the tank to either 19.0 or 19.3 gallons (a ~510–521 mi spread).

EPA puts the running cost at $2,800 a year on its standard 15,000-mile, 55/45 city-highway assumptions. Decent MPG cannot rescue the figure because it is calculated at premium-grade pricing, which is where this car loses ground to mainstream sedans returning similar economy on regular.

Both US A6 engines require premium unleaded (91 AKI), not merely recommend it, which adds roughly 40–60¢ per gallon over regular for the life of the car. With no diesel, flex-fuel, hybrid or plug-in variant offered in the US for 2023, the buyer has no configuration available that lowers the energy bill.

NHTSA's SafetyRatings API lists "AUDI A6 SEDAN" for 2023 but returns no rated variant, so there is no 2023-specific NCAP result. The 2024 A6 Sedan AWD — same C8 body and structure, no intervening redesign — scored 5 stars overall, and that is the latest tested year of this generation, which is what the item calls for.

The 2023 A6 rates Good in every crashworthiness test IIHS ran on it — driver- and passenger-side small overlap front, original moderate overlap front, roof strength, head restraints — and carries a TOP SAFETY PICK+ award. But that award is the 2022 one (covering 2022-23 models): the A6 sedan is absent from the 2023 winners list, because IIHS never ran it through the updated side test the 2023 criteria require, and there is no updated moderate overlap result either. A clean sweep on the older protocol, with the two toughest current tests simply missing.

2023 was the year Audi moved adaptive cruise control and lane-keep assist onto the A6's standard list, joining Audi pre sense front (AEB with pedestrian detection), lane departure warning, automatic high beams, front and rear parking sensors and a rearview camera on the $57,995 Premium. That covers four of the five features the top band asks for; blind-spot monitoring and rear cross-traffic alert are the gap, waiting on the Convenience package or the Premium Plus trim.

Audi pre sense front is standard and IIHS rates it Superior in both evaluations it ran — vehicle-to-vehicle and daytime pedestrian — avoiding collisions outright at 12 and 25 mph in the vehicle test and in most crossing-pedestrian scenarios. It sits just below the top band only because the nighttime pedestrian test was never run on this car, so the hardest scenario is unmeasured rather than passed.

Audi side assist with rear cross-traffic alert is not on the volume Premium trim — it arrives with the Convenience package or by stepping up to Premium Plus. Reviewers rate the system itself well, but it is alert-only (rear automatic braking is a separate option) and a buyer of the base car does not get it, which is squarely the middle band.

Lane departure warning and active lane keeping are standard for 2023 and do their job, but true lane centering is a paid upgrade — adaptive cruise assist comes only in the Convenience package or, on Prestige, the Executive package. C8 owners also report the keeping function needing repeated hand-torque prompts and tracking that wanders rather than holding the middle of the lane.

Full-speed-range adaptive cruise is standard from 2023 and Edmunds' instrumented test found it works well in traffic. The combined highway-assist layer — adaptive cruise assist, which adds steering and traffic-jam operation — is the optional half, so the volume Premium buyer gets competent distance-keeping without the integrated hands-on highway assist that would earn the top band.

Audi offered no hands-free highway driving on the 2023 A6 in the US — nothing equivalent to GM Super Cruise or Ford BlueCruise, both already on sale in this price bracket by 2023. Every assist on the car is hands-on and requires steering-wheel torque.

IIHS rates the A6's headlights Good on Premium Plus and Prestige but only Acceptable on the volume Premium trim — the exact pattern the middle band describes, good lighting on the upper cars and a step down on the one most people buy. Automatic high beams are standard across the range.

Side and rear glass are generously sized for a modern executive sedan and reviewers call outward visibility good overall, but thick A-pillars intrude on the forward three-quarter view. The 360-degree camera that would compensate is optional on the sedan (Convenience package or Premium Plus), unlike the allroad where it is standard — so the base car relies on the rearview camera and parking sensors.

IIHS rates the 2023 A6's LATCH ease of use Good, its top grade, with two outboard positions carrying full hardware and a third tether-only position. Mid-size sedan bench width still makes three seats across impractical and the sloping roofline tightens the loading arc, which keeps it off the very top of the band.

2023 is a carry-over year inside the C8 generation (2019–2024), and every US A6 sedan — 45 TFSI quattro and 55 TFSI quattro alike — seats five. Quattro is standard, so the transmission tunnel makes the centre rear position a short-trip seat in practice.

38.0 in sits exactly mid-band for a sedan. Because the panoramic glass roof is standard on every 2023 US A6, there is no higher no-sunroof figure to quote — 38.0 in is what every buyer actually gets.

41.3 in is in the lower third of the mid-size sedan band, a long-standing C8 packaging trait. Reviewers describe the front cabin as spacious thanks to 57.8 in of shoulder room, so the number understates how it feels, but seat travel is merely adequate for very tall drivers.

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

37.4 in on a 115.1 in wheelbase is mid-pack for the class: adults sit properly for commutes and medium trips, 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 on long trips.

13.7 cu ft is a little below the mid-size sedan average and is the practical ceiling on the A6's family and road-trip missions — two large cases plus soft bags rather than four. A 40/20/40 split-folding seatback with a centre ski 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 Audi phone box on trims that get one, a decent glovebox and the 40/20/40 rear seatback with a pass-through. There is no standout innovation — no underfloor bin, no reconfigurable console, no onboard household power — and the lower 8.6 in MMI display occupies console real estate that rivals give over to storage.

A genuine C8 strength, corroborated by an instrumented road test: Consumer Reports rates both rows comfortable and supportive even for long trips. Heated power front seats with memory and leather are standard on the base Premium, so the seats a typical 2023 buyer gets are well equipped as well as well shaped; ventilated fronts and heated rears require the Executive package.

Composed but firm, and Consumer Reports names the firmness as the specific reason the A6 misses the top of the class: the suspension absorbs pothole and rut impacts well and the body stays steady, but road texture reaches the cabin on the standard steel-spring setup that the volume Premium uses. Adaptive air suspension is genuinely plush but is an option most buyers do not take.

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 short of the segment's quietest cars.

A rich standard set at the entry point — heated power front seats, leather, three-zone automatic climate with rear vents, panoramic sunroof and ambient lighting on the $56,900 Premium — and the volume Premium Plus adds a heated steering wheel and wireless charging. Ventilated front seats, heated rear seats and four-zone climate are bundled into the Executive package (standard only on Prestige), which is what keeps this out of the top band.

The entry 2023 A6 is the 261-hp 45 TFSI Premium at $56,900 before Audi's $1,095 MY2023 destination charge, and quattro AWD is standard on every A6 where a 2023 BMW 530i and Mercedes E 350 still listed rear-drive base cars. That is far above the ceiling of the $22k–$55k sedan normalization band, so this scores zero — the band grades all sedans on one absolute scale rather than against luxury peers.

Premium Plus is the volume A6 trim and the 261-hp 45 TFSI is the volume engine — it is where Virtual Cockpit Plus, Bang & Olufsen 3D audio, top-view camera and the head-up display live, and KBB builds its 2023 A6 valuations around the 45 TFSI Premium Plus body style. Adding metallic paint and either the Convenience package (where adaptive cruise assist with lane guidance sits for 2023) or the Black Optic pack puts real orders near $63,000.

Nothing is included on a 2023 A6 — Audi Care is a prepaid plan bought on top of the car and Audi Signature Care's included service did not arrive until MY2026 — so the owner pays from the first 10,000-mile service, and year 5 falls entirely outside the 4 yr/50,000 mi warranty. RepairPal puts the 2023 A6 quattro at $1,056/yr in repairs alone, above the 2023 A4's $925/yr, which is why this sits somewhat above the A4's $7,900: a bigger car on bigger tires and brakes with a V6 option, at the same German dealer labor rates.

Real 2023 cars are three years old now and list around $34,500 retail — roughly 55% of the $63,000 volume-trim price, and less than that on a private-party basis — which puts the five-year mark in the mid-40s. iSeeCars' observed 44.4% is measured on this exact C8 generation, which sold on heavy incentives; CarEdge's more optimistic 51% is a forward projection and matches what the redesigned C9 is forecast to hold, not what the run-out C8 actually did.

Audi's 4 yr/50,000 mi bumper-to-bumper matches BMW and Mercedes for 2023 and beats the 3 yr/36,000 mi mainstream standard, but trails Genesis and Jaguar at 5 yr/60,000 mi. Mid-band for the segment and unchanged for MY2023.

Audi dropped its separate, longer powertrain warranty from MY2020, so the 2.0T or 3.0T V6 and the quattro driveline in a 2023 A6 are covered for exactly as long as the trim panels. That falls below the floor of the 5–10 year band this item normalizes against and is a fraction of the 10-year powertrain coverage from Hyundai, Kia and Genesis — the A6's weakest ownership metric.

No complimentary scheduled maintenance at all on a 2023 A6 — Audi Care is a prepaid plan covering the 10,000-to-40,000-mile services for roughly $699–$1,179 depending on model, and Audi Signature Care's included 3 yr/30,000 mi service did not arrive until MY2026. What is included is 4 years of unlimited-mileage Audi 24-Hour Roadside Assistance running alongside the warranty plus short Audi connect trials, so the owner pays from the very first service — behind the included-maintenance programs Genesis, Volvo, Jaguar and BMW's then-current Ultimate Care offered in this segment.

$63,000 volume-trim price minus its estimated resale value after 5 years (44% retained, or about $27,720) leaves about $35,280 in depreciation. Add the projected $8,200 in 5-year maintenance and repairs, and owning this vehicle for 5 years costs about $43,480 in total.

Consumer Reports rates the 2023 A6 as having about-average reliability, and unlike a forecast this model year now has a realized three-year field record that is genuinely clean — two NHTSA complaints total, no crashes, fires or injuries. 2023 is a mature mid-cycle year of the C8 (2019–2025 in the US) with a carry-over powertrain, which is the low-risk part of a generation's life. Held only modestly above the sedan 25th percentile because the brand-level dependability result for this exact model year is bottom-third and RepairPal's quattro-specific data — which is what every US A6 actually is — is materially worse than its generic A6 entry.

Audi's standing is bottom-third at both ends of this model year's life, which is the strongest form this evidence can take: it ranked 30th of 33 brands in the 2023 IQS — the study of 2023 model-year cars at 90 days — and then 24th of 31 in the 2026 VDS, the study of those same 2023 cars at three years. The deficit is driven by infotainment and electronics rather than mechanical failure, which is the only thing keeping this off the floor, and the trajectory since has worsened rather than recovered.

A clean campaign record after three-plus years in the field: the 2023 A6 carries exactly one NHTSA safety recall, and it is a fleet-wide software fix rather than anything specific to or systemic in this car. Nothing touches the engine, structure, airbags or fire risk, and owner complaints number two. Kept just inside the top band rather than higher because a separate emissions campaign covers a transmission control unit software error on the DSG, and Audi's infotainment problem profile is exactly the kind that generates a long tail of software TSBs that never rise to a recall.

The volume 45 TFSI carries over unchanged for 2023: the 2.0L EA888 turbo four (261 hp / 273 lb-ft) with the DL382 seven-speed S tronic wet-clutch DCT, quattro and a belt-driven starter-generator mild hybrid — all long-serving VW Group hardware with high-mileage track records and no systemic failure pattern, and a carry-over year is the safest point to buy into it. Discounted from the top band for well-documented maintenance liabilities rather than fragility: direct-injection carbon buildup requiring periodic walnut blasting, water pump and thermostat replacement, and the belt starter generator as an additional failure point.

Reviewers are consistent that the 2023 cabin is a benchmark for material richness at this price — genuine wood, nickel-finished metal, stitched leather and an exceptionally quiet interior — and in 2023 the C8 design was still current rather than aging against newer rivals, which is why this sits above the same item on the final C8 model years. Kept out of the highest band because the glossy black trim and twin haptic touchscreens are fingerprint magnets and owners report early wear on high-touch console and door surfaces.

Physical assembly is a clear strength — reviewers report panels fitting tightly without large gaps and a well-damped, rattle-free cabin from the Neckarsulm line — but this item's guidance names initial-quality reports explicitly, and Audi finished 30th of 33 brands in the IQS covering this exact model year. Scored above the same item on later A6 years because the 2023 gap to the industry average (29 PP100) is roughly a third of the 2025 gap (77 PP100), and because most of the deficit is screen-and-software rather than build defects.

Audi's US retail network is the smallest of the German three — roughly 314 stores against BMW's 370 and Mercedes-Benz's 387 — leaving thinner coverage outside metro areas for a car whose problem profile is software-heavy and therefore dealer-dependent. Service satisfaction is adequate rather than distinguishing: Audi does not appear among the premium leaders in J.D. Power's customer service index in any recent year.

Running costs are typical for a German luxury sedan — around or below the luxury-class average but well above the all-vehicle average — with European-premium parts pricing and most diagnostics and software work channelled through the dealer. Scored in the lower half of the normal band because the quattro-specific data, which describes every US A6, is the worse of RepairPal's two entries, and because a 2023 car is now past or nearly past the 4yr/50,000-mile warranty, so the mild-hybrid belt starter generator, DCT service and haptic-screen electronics land on the owner at dealer rates.

Audi's own documentation for this generation puts the upper display at 10.1 in with MMI navigation plus, which is standard on every US A6, and the lower console display at 8.6 in. The item measures the centre screen diagonal, and 10.1 in is modest by 2023 standards even though the A6 carries two screens rather than one.

MIB3 hardware makes the dual-screen MMI quick, and Consumer Reports found the layout logical once past the initial intimidation of two touch displays. The cost is that climate and most convenience functions moved onto the lower haptic screen, so the A6 asks the driver to look down for adjustments a knob would handle — good, not class-leading.

Audi smartphone interface is standard across the 2023 range and connects wirelessly to both Apple CarPlay and Android Auto on MIB3 cars (MY2022 onward), so no trim step or package is required. It sits just below the top of the band only because Audi does not publish the wireless Android Auto capability as prominently as CarPlay and some owners report needing a firmware level to get it.

MMI navigation plus is standard rather than optional, and it is a strong native system — cloud-assisted destination search, Google Earth satellite imagery and Audi connect live traffic — paired with a natural-language voice assistant that accepts conversational commands. It falls short of the top band because the assistant still fumbles free-form requests and most owners default to phone projection.

The Bang & Olufsen Premium Sound System with 3D sound is a genuinely excellent upgrade and it arrives on the volume Premium Plus rather than being reserved for the top trim, with HD and satellite radio standard from the base car. The standard 10-speaker Audi sound system is merely competent, which keeps it out of the top band.

The Audi virtual cockpit is standard on every 2023 A6: a 12.3-inch full-HD reconfigurable cluster that can be switched between classic gauges and a full-screen map, with virtual cockpit plus adding further layouts on higher trims. It remains one of the benchmark digital clusters in the class.

The C8's MIB3 head unit takes over-the-air map and infotainment content updates through the embedded Audi connect modem, but vehicle control software still needs a dealer visit — Audi's whole-vehicle OTA programme in 2023 was confined to its e-tron models. That is squarely the infotainment/maps-only middle of the band.

myAudi covers the core remote set — lock/unlock, vehicle status, car finder, destination send-to-car and remote start on equipped cars — but Audi connect PRIME is a paid subscription after the included trial, and the 2023 A6 has no phone-as-key digital key. Remote start availability by trim is inconsistently documented, which is itself a mark against it.

Two USB-C data ports up front and rear-seat USB-C charging cover the basics, and the Audi phone box adds wireless charging with signal boosting from Premium Plus upward. There is no household outlet and no high-wattage onboard power, and wireless charging costs a trim step, so this lands mid-band.

Proximity entry and push-button start are standard on the base Premium rather than being a package item, and Prestige adds power soft-closing doors. It stays out of the top band because the 2023 A6 has no phone-as-key or digital-key sharing, and remote start depends on a connected-services subscription.

Front and rear parking sensors plus a rearview camera are standard on every 2023 A6, and the top-view 360-degree camera with virtual bird's-eye view arrives on Premium Plus or via the Convenience package — widely available rather than top-trim-only. Prestige adds a remote parking system. Only the fact that the base car goes without surround view keeps it below the top band.

The A6's head-up display is good — a large projected window with junction-zoom navigation guidance — but in 2023 it is reserved for the roughly $70,000 Prestige, two trims above the volume Premium. Available and high quality, but not on the trims most buyers take, which is the middle of the band by definition.

The hardware is right — IIHS rates the 2023 A6's LATCH ease of use Good, with two full outboard positions and a centre tether — and 38.1 in of rear headroom makes seat installation less of a contortion than the sloping roofline suggests. But a 13.7 cu ft trunk is the binding constraint for a stroller plus a week's gear, and sedan door apertures with a low floor mean more lifting than any crossover asks for.

Strong crash credentials — Good in every IIHS test run on it with a TOP SAFETY PICK+ badge, and 5 stars overall from NHTSA for this body — and 2023 is the year Audi moved adaptive cruise and lane-keep assist onto the standard list alongside pre sense front AEB. Blind-spot monitoring and rear cross-traffic alert still cost a package or a trim step, and the entry price is $57,995, so the safety proposition is excellent but not cheaply reached.

Consumer Reports rates both rows comfortable and supportive for long trips, the cabin is quiet at speed and three-zone climate with rear vents is standard, so four people travel well. The limits are gear rather than people: 13.7 cu ft of trunk with all seats occupied, no rear entertainment, and heated rear seats only via the Executive package.

At cruise the A6 is an easy, low-fatigue car — standard adaptive cruise from 2023, light controls, a quiet cabin and standard parking sensors. What holds it back is precisely the traffic case this item measures: the seven-speed dual-clutch is short on refinement at low speed and the car hesitates before launching from a stop or a rolling stop, the most-cited complaint about this powertrain.

27 MPG combined is genuinely good for an all-wheel-drive mid-size luxury sedan — Consumer Reports calls the A6's economy class-leading — but the mild-hybrid 2.0T requires premium fuel, so the EPA puts annual fuel spend at about $2,800, and Audi consumables and dealer service rates are expensive. Cheap per mile relative to its rivals, expensive per mile in absolute terms.

A 194.4 in executive sedan with a turning circle near 40 ft is a handful in tight urban geometry, and thick A-pillars intrude on the forward three-quarter view. Standard front and rear parking sensors with a rearview camera do the compensating, but the 360-degree camera that would really help costs a package on the volume trim.

The A6 sedan carries no US factory tow rating — Audi does not offer a hitch for it in this market even though European cars are rated to roughly 2,100 kg — and a 13.7 cu ft sealed trunk with no bed, no payload figure and no flat load floor rules out any real work duty. It is a luxury sedan and does not pretend otherwise.

Nothing about the A6 is built for abuse: leather and open-pore wood rather than washable surfaces, 4.2 in of ground clearance, air-suspension and dual-clutch hardware that is expensive to fix, and an Audi brand reliability record that sits below the industry average. There is no fleet or commercial history behind this nameplate to draw on.

There is essentially no work-oriented provision: no onboard household power, no factory roof rails on the sedan, no US hitch, no bed access features and only basic trunk tie-downs and a 12V socket. The A6 allroad, not the sedan, is the body style Audi points at gear.

This is the A6's best mission. Consumer Reports rates both rows comfortable for long trips and the cabin quiet at speed, the 19.3-gallon tank at 27 MPG combined gives roughly 520 miles between stops (nearly 600 at the highway rating), and adaptive cruise became standard for 2023. It misses the very top only because the standard steel-spring ride is firm over textured pavement and the lane-centering half of highway assist is optional.

Standard quattro all-wheel drive is a real advantage over rear-drive rivals on snow and gravel and makes the A6 a credible ski-trip car, but 4.2 in of ground clearance, no factory roof rails on the sedan, no US tow rating and no 12V/110V camp power keep it firmly on pavement. Audi's own answer to this brief is the allroad.

The 40/20/40 split rear seatback with a centre ski pass-through is the right flexibility for a sedan and handles skis or long items without giving up both rear seats, but everything still has to go through a trunk aperture into 13.7 cu ft, with no roof rails, no hitch and no underfloor bin to expand it.

Standard quattro and a stiff C8 structure give the A6 far higher cornering limits than its size suggests — Edmunds calls them astonishingly high for a car that is not the S6 — and Consumer Reports rates the handling lively and sporty. It is composed and confident rather than playful, which is exactly the upper-middle of this band for a mid-size luxury sedan.

Accurate and well weighted — Consumer Reports says the sharp steering brings the driver into the action — but the same test notes there is not a lot of feedback coming back through the rim. Precise enough to place the car confidently, numb enough to keep it out of the top band.

Instrumented and excellent: Edmunds recorded 103 feet from 60 mph with linear pedal response, and Consumer Reports calls the braking performance superb and a source of driver confidence. That is a genuinely strong result for a 4,100 lb sedan on all-season tyres.

Once rolling, the 261 hp 2.0T with 12-volt mild hybrid is smooth and the MHEV system covers stop-start restarts cleanly, with 273 lb-ft available from 1,600 rpm. The calibration falls apart at walking pace: Consumer Reports found the dual-clutch short on refinement at low speeds, with the car hesitating before launch or from a rolling stop.

Well isolated at cruise with no vibration through the controls, but the four-cylinder makes itself heard under load and Consumer Reports specifically calls its sound less polished than the V6's — audible and inoffensive rather than pleasant, which is the middle of the band.

A wide circle even for a 115.1 in wheelbase — standard quattro and the C8's front-axle packaging cost it steering lock, and it is one of the A6's few genuinely poor everyday-usability numbers. Sources conflict: the variant-specific 12.1 m / 39.7 ft figure and Cars.com's 40 ft agree with each other and with the ~11.9 m European average for the C8, while several US aggregators repeat a 36.4 ft figure that is out of line with both and with the car's dimensions, so the wider number is used here.

Power front seats with memory, a wide adjustment range and a low, well-judged driving position suit a broad range of sizes, and Consumer Reports found the twin-screen layout logical in use. Two things keep it below the top band: nearly all climate and convenience adjustment lives on the lower touchscreen rather than on physical controls, and thick A-pillars intrude on the forward three-quarter view.

Fast enough (5.8 s to 60 mph), grippy and unflappable, but the volume 45 TFSI's character is competence rather than charisma — muted engine note, numb steering, and reviewers consistently note it is not the most athletic car in a class that includes the 3 Series and G70. Pleasant, not a car you take the long way home in; the S6 exists for that.

The base 45 TFSI Premium is well stocked — quattro AWD standard on every A6 where the 2023 BMW 530i and Mercedes E 350 still listed rear-drive base cars, plus the dual-screen MMI touch response cabin, leather, heated front seats, three-zone climate, sunroof and LED headlights. Held to the competitive band rather than the top one because at $57,995 the essentials still cost extra: adaptive cruise assist with lane guidance was newly available on Premium for 2023 but only inside the Convenience package, and Virtual Cockpit Plus, Bang & Olufsen 3D audio, head-up display and the top-view camera all wait for Premium Plus.

Fair value rather than a bargain. Standard quattro at $57,995 is real content a rear-drive 530i or an E 350 charges to match, and the 335-hp 55 TFSI V6 at a $3,900 upcharge is well priced for the output — but the ladder climbs to $71,595 for a Prestige, the C8 cabin tech was a generation behind by 2023, and the Genesis G80 hands over comparable equipment several thousand dollars lower. U.S. News still ranked it first in the class on overall merit, which is what keeps this comfortably mid-band.

Five sedan configurations for 2023 — Premium and Premium Plus in either the 261-hp 45 TFSI or the 335-hp 55 TFSI, plus a V6-only Prestige — spanning roughly $58k to $72k delivered, with the S6 above them and the A6 allroad wagon alongside on the same platform. Genuinely broad and better spread than the single-engine 2026 car; the gaps are that quattro is mandatory with no cheaper front-drive entry, and the US A6 was gas-only where BMW's 5 Series family offered the 530e plug-in hybrid.

A slow seller in visible decline. Audi moved 5,939 A6/S6 sedans in the US in 2023, down about 12% from 6,715 in 2022 and only a third of the nameplate's 17,754-unit 2019 peak — and that fall happened in a year when Audi's own US volume rose 22%, so the A6 shrank while the brand around it grew. The BMW 5 Series outsold it more than three to one, and buyers in this segment were migrating to the Q5 and Q7 crossovers.

The four rings carry genuine aspirational pull in the US — design-led, tech-forward, with quattro as a real brand asset rather than a marketing word — and the A6 sits nearer the flagship end of the range than the A4. 2023 was a strong brand year at +22% on the back of the Q5 and an expanding EV lineup. Held below the top band because Audi still trails BMW and Mercedes on outright luxury cachet and on the resale support that follows it, which is exactly where this particular car struggles.

Good news for the buyer and a symptom of the sales problem above. Audi Financial Services subvented the 2023 A6 hard — a base money factor of .00101 on a 45 Premium Plus 36/10k lease works out near 2.4% APR at a time when unsubsidized rates were far higher — and slow-moving inventory in a shrinking segment meant real negotiation off sticker rather than the at-or-over-MSRP market of 2021–22. Forum trackers note the incentives sat on the 2023 car specifically and dried up on the 2024, which is the shape of run-out support rather than desperation pricing.

2023 is the fifth model year of the C8 generation launched for 2019 and the last one before its mid-cycle refresh — a buyer taking delivery in 2023 was months away from the restyled 2024 car with standard Matrix LED headlights and adaptive cruise assist across the range. Worse for residual confidence, the replacement plan went public during the model year: in March 2023 Audi's CEO confirmed the A6 nameplate would be renamed A7 and the future A6 sold as an EV. Changes for 2023 itself were packaging-level only.

Critically the 2023 A6 was in strong standing even as the market walked away from it: U.S. News scored it 8.3/10 and ranked it #1 in Luxury Midsize Cars, Consumer Reports called it among the best midsize luxury sedans it had tested, Edmunds named it one of the best in class, and it took IIHS Top Safety Pick+ with a five-star NHTSA rating. Kept out of the top band because it was rarely the outright pick — KBB placed it fifth among 2023 luxury mid-size cars, and there was no 10Best or NACTOY nod, with comparison tests still favoring the 5 Series and E-Class.