2020 Audi A4

The volume 45 TFSI quattro's 2.0-liter turbo four makes 248 hp — competitive within the compact luxury class but an ordinary figure against a sedan band that stretches to 520 hp, which is why it lands low despite feeling brisk in the real world.

273 lb-ft available low in the rev range is the more flattering half of this powertrain's spec sheet — turbo torque is what makes the A4 feel quicker than its horsepower suggests.

Audi's own 5.6-second claim is conservative — independent instrumented testing has beaten it by three to four tenths, helped by quattro's launch traction off the line. Genuinely quick for a mainstream compact luxury sedan without stepping up to the S4.

The EA888 2.0T is quiet, smooth and punchy in the midrange — standard refinement praise across reviews — but reviewers consistently flag a hesitation when pulling away from rest, a combination of turbo spool and dual-clutch takeup that keeps this out of the top band.

The seven-speed S tronic dual-clutch shifts quickly and essentially invisibly once moving, and it never hunts the way a torque-converter automatic with more ratios can. Its weakness is the classic dual-clutch one — creep and low-speed takeup in traffic and on inclines are its least polished moments.

quattro all-wheel drive is standard on every 2020 A4 above the FWD 40 TFSI base car — that is the 45 TFSI in all three trim walks, the allroad and the S4 — so effectively the whole meaningful range. It is a road-biased system with torque distribution rather than terrain modes or a low range, so it stops short of the top band.

Two tunes of one 2.0-liter turbo four (188 hp FWD, 248 hp quattro) is the whole A4 sedan lineup for 2020, with the 349 hp S4 V6 sitting above it as a separate model. There is no hybrid, plug-in or electric option anywhere in the range — Audi's electrification of the A4 line never arrived before the nameplate was replaced.

27 MPG combined for the volume quattro sedan is unremarkable for a 2.0-liter compact sedan — the 2020 US A4 has stop-start but no mild-hybrid assist yet, and standard all-wheel drive costs it three MPG against the front-drive 40 TFSI.

24 MPG in town is the weakest of the three EPA figures and the one a commuter feels. Start-stop is standard, but without the 12-volt mild-hybrid coasting and restart functions later A4s gained, there is nothing else recovering energy in traffic.

32 MPG highway is the A4's best EPA number, earned by the seven-speed S tronic's tall top gears and a slippery body at a steady cruise — respectable, though a good few mainstream sedans clear it without a premium-fuel bill.

About 413 miles between fills from the 15.3-gallon tank — below par for a compact sedan, and the small tank is the binding constraint rather than the engine. The same drivetrain would clear 450 miles on a segment-average fill.

$2,800 a year at EPA assumptions puts the A4 near the expensive end of the compact-sedan band. Mid-pack MPG is only half the story — mandatory premium fuel is what turns an ordinary economy figure into a genuinely costly one to run.

Every 2020 A4 drivetrain requires premium unleaded, with no regular-grade, flex-fuel or plug-in alternative anywhere in the range — a standing surcharge of roughly 60–80 cents a gallon over regular. Normal for the compact luxury class, but this item grades the requirement itself rather than the peer group.

NHTSA tested the 2020 A4 directly in both drive configurations and awarded 5 stars overall to each. Frontal is the weak leg at 4 stars for driver and passenger alike, while side barrier, side pole and rollover all took 5.

The 2020 A4 is a full IIHS Top Safety Pick with a clean crashworthiness sheet — Good in all six evaluations including roof strength and head restraints. Two things keep it off the top of the band: it misses TSP+ because the award is restricted to specific headlights (the volume Premium's are Marginal), and these are the original moderate-overlap and side tests, not the tougher updated versions IIHS introduced later for this class.

Thin for a $38k luxury sedan, and thinner than the same car became later. The volume Premium's standard sheet is pre sense city AEB with pedestrian detection, forward collision warning, automatic high beams and a rearview camera — that is all. Blind-spot and rear cross-traffic need the $1,500 Convenience package; lane departure warning is optional rather than standard in 2020; and adaptive cruise cannot be had on the Premium at any price. This is four model years before Audi made ACC and active lane assist standard across the A4 range.

The one area where the 2020 A4's standard equipment is genuinely strong. Pre sense city takes Superior in both IIHS front crash prevention tests run on this car — vehicle-to-vehicle and daytime pedestrian — and the pedestrian sheet is spotless, avoiding the crash outright in every crossing-child and crossing-adult run. It falls short of the top band only because IIHS never ran a nighttime pedestrian test on the B9 A4.

Audi side assist is alert-only — a mirror-mounted LED with no steering or braking intervention — and on the volume Premium it is bundled into a $1,500 convenience option alongside keyless entry and memory seats rather than sold as a standalone safety choice. It does bring pre sense rear (rear automatic braking) and rear cross-traffic assist with it, and is standard from Premium Plus up, so the coverage exists on every trim; it just isn't fitted to the car most buyers order.

The weakest ADAS result for 2020: the volume Premium gets no lane assistance of any kind as standard — even the warning-only lane departure system is an option, which NHTSA and IIHS both record. Audi active lane assist and the Traffic Jam Assist centering that rides with it need a Premium Plus plus its $1,500 Driver Assistance package, or the Prestige; and where fitted, reviewers rate the tuning mid-pack rather than class-leading.

The system is good where you can get it — full-speed-range stop-and-go ACC with Traffic Jam Assist layering lane centering on top — but 2020 places it further out of reach than any later A4 year. It is not offered on the volume Premium at all, and on Premium Plus it is not standard either: it costs another $1,500 as part of the Driver Assistance package. Only the Prestige has it fitted from the factory.

No hands-free highway driving is offered on the 2020 A4 at any trim, and Audi had no US analogue to GM Super Cruise, Ford BlueCruise or Tesla's supervised system in this model year. Traffic Jam Assist, the closest thing on the option sheet, is explicitly hands-on and requires the driver to keep the wheel held.

The A4's weakest safety result, and it lands squarely on the volume trim: the Premium's LED projector low beams with LED reflector high beams rate Marginal, with inadequate illumination noted on curves and on both sides of the straightaway at high beam. Premium Plus is Acceptable and only the Prestige earns Good — which is exactly why the Top Safety Pick is headlight-restricted and why the car misses TSP+. IIHS scopes this Marginal variation to 2020-22 models, so it is a defect of these specific years rather than the whole B9 generation.

The facelifted B9 body gives typical compact-luxury sightlines — low cowl and reasonably slim A-pillars ahead, a rising beltline and thick C-pillars that pinch the over-the-shoulder view. Camera and sensor compensation barely reaches the volume trim in 2020: the Premium ships with a rearview camera and nothing else, since front and rear parking sensors and the top-view 360-degree system both require the step up to Premium Plus.

The hardware is easy to live with — IIHS rates LATCH ease of use Good, with visible lower anchors needing no meaningful attachment force and clearly labelled tether anchors. What caps the score is space rather than hardware: only the two outboard positions carry complete LATCH, and a compact sedan's rear legroom makes a rear-facing infant seat tight behind a tall front occupant, with narrow rear door openings not helping the loading process.

The B9.5 A4 sedan is a conventional five-seater across Premium, Premium Plus and Prestige, with a three-place rear bench and no reduced-seat or bench-front variants.

Published without-sunroof front headroom is 38.9 in, which is what this item asks for, but essentially no US buyer sees it — the sunroof is standard equipment on all three 2020 trims and drops the real figure to 37.0 in.

41.3 in is mid-pack for a compact sedan and sits low in the 40–44 in normalization band; the A4's front cabin is comfortable but not notably long-legged.

37.4 in of second-row headroom is genuinely good for a compact sedan and lands above the middle of the 35–39 in sedan band, helped by the B9's relatively upright rear roofline.

35.7 in is the A4's clearest packaging weakness — adequate for two adults on short hops but tight against a 32–42 in band that includes mid-size sedans, and a straight loss to the class-leading rear seats in the segment.

12 cu ft is small even by compact-sedan standards and sits near the bottom of the 10–20 cu ft sedan band; the split-fold seatback and ski pass-through recover some flexibility but not raw volume.

Competent but unremarkable: a modest covered console bin, shallow door pockets, a small covered tray ahead of the shifter and a 40/20/40 folding rear seatback with pass-through. The 2020 car has no standout storage feature, and the MIB3 changeover deleted the AUX/media cubby layout without adding anything in its place — the wireless-charging phone box that at least uses the front tray well is a Premium Plus item, not standard.

Front seats are a repeated strength — standard leather sport seats with 12-way power adjustment, thigh extension and power lumbar draw praise for long-stint support in nearly every 2020 review. The rear bench is the limiter: well shaped but short on legroom, so the score stops short of the top band that requires praise front and rear.

The passive sport suspension fitted across the 2020 range rides better than its name suggests — reviewers repeatedly describe it as supple over broken pavement while keeping body motions tightly controlled, a rare combination for a car that also handles well. It falls short of the plush top band only because larger wheels on the S line/Black Optic packages firm it up noticeably.

Wind and powertrain noise are well suppressed for the class and the 2.0T is quieter under load than most turbo fours, but coarse-chip road roar is the one intrusion reviewers single out — the A4 is measurably behind the Lexus ES benchmark on tire noise, which keeps it just under the library-quiet band.

Solid core equipment — heated power front seats, dual-zone automatic climate and a standard sunroof on every trim — but the extras are thin for a luxury sedan in 2020: a heated steering wheel is bundled into the Convenience package rather than standard, three-zone climate and rear-seat climate controls are optional, and ventilated seats are not offered on the A4 at any price.

For 2020 the entry A4 is the 188-hp 40 TFSI Premium, and unlike the later B9 years it is front-wheel drive — quattro requires stepping up to the 248-hp 45 TFSI. That gives the 2020 car a genuinely lower price of entry than the 2022–2026 A4s (where quattro is standard), and it undercuts a 2020 BMW 330i and Mercedes C 300 on sticker.

The volume 2020 A4 is the 45 TFSI quattro in Premium Plus trim: US luxury-compact buyers overwhelmingly take AWD, which for 2020 means the 45, and Premium Plus is where Virtual Cockpit, Audi side assist with rear cross-traffic, wireless charging, parking sensors and keyless entry live — the gear most shoppers consider non-negotiable. Adding metallic paint or the usual package pushes real transactions just past $45,500.

Nothing is complimentary on a 2020 A4 — the owner pays from the first 10,000-mile service — and years 4 and 5 sit outside the 4 yr/50,000 mi warranty, which is exactly when a 2.0T with quattro hardware and a dual-clutch starts generating bills. RepairPal's $925/yr for the A4 quattro compounds to roughly $4,600 in repairs alone before scheduled service, tires or brakes.

Real 2020 cars are six years old now and book around 41% of their delivered MSRP, which back-casts to the mid-to-high 40s at the five-year mark. MY2020 residuals got a genuine lift from the inflated 2021–23 used market, but that support had largely unwound by the 2025 five-year point, and the A4 still depreciates faster than the luxury-compact class average.

Audi's 4 yr/50,000 mi bumper-to-bumper matched BMW and Mercedes for 2020 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.

Audi publishes no standalone powertrain warranty, so the 2.0T, S tronic and quattro hardware on a 2020 A4 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 yr/100,000 mi powertrain coverage from Hyundai, Kia and Genesis.

No complimentary scheduled maintenance at all on a 2020 A4 — Audi Care is a prepaid plan bought on top of the car, and Audi Signature Care (3 yr/30,000 mi included service) did not arrive until MY2026. What is included is 4 years of Audi 24-Hour Roadside Assistance running alongside the warranty plus short Audi connect trials, so the owner pays from the first 10,000-mile service. That trails the included-maintenance programs Genesis, Volvo, Jaguar and BMW (Ultimate Care, 3 yr/36,000 mi from MY2017) all offered in 2020.

$45,600 volume-trim price minus its estimated resale value after 5 years (47% retained, or about $21,432) leaves about $24,168 in depreciation. Add the projected $7,600 in 5-year maintenance and repairs, and owning this vehicle for 5 years costs about $31,768 in total.

Model-level signals are good: Consumer Reports scores the 2020 A4 76/100 on reliability and calls it more reliable than the average car of its model year, and RepairPal rates the A4 3.5/5.0 with only 0.4 unscheduled shop visits per year against a 0.6 luxury-midsize average. The drag is specific to this model year — 2020 is the B9 facelift and the launch year of the MIB3 infotainment platform in the A4, and the NHTSA complaint file for it is dominated by that hardware rather than by mechanical faults. J.D. Power never accumulated enough survey response to publish a 2020 A4 rating.

Audi sends mixed multi-year signals and has trended down recently. J.D. Power's 2024 U.S. Vehicle Dependability Study — which surveys three-year-old vehicles, the cohort this A4 sits nearest — placed Audi second from last, below Land Rover; the 2025 VDS recovered to slightly above industry average. Consumer Reports' 2026 Automotive Brand Report Card has Audi 13th, upper-middle and ahead of Mercedes and Land Rover but behind BMW and Lexus. Mid-pack at best over a multi-year window, with a genuinely bad recent VDS result on the books.

Recall count is low — three campaigns, none powertrain or fire — but two of the three are one chain: a rear-axle trailing-arm lock nut that can break from stress corrosion and misalign the axle (loss-of-control risk), followed by a second campaign for cars whose alignment was never re-inspected after that repair. The third can disable the front passenger airbag through a seat-heater/occupant-detection cable fault. The bigger mark against this model year is the TSB and complaint pattern around the new MIB3 head unit: the MMI reboots spontaneously while driving, blanking the backup camera, navigation and rear obstacle detection until it reloads. That is the single largest cluster in the car's NHTSA file and required repeated dealer software campaigns.

The volume 2020 US configuration is the 248 hp 2.0T EA888 Gen 3B paired with the seven-speed S tronic dual-clutch and quattro (the 188 hp 40 TFSI front-driver is the other US engine; the 261 hp mild-hybrid 45 TFSI is a 2021 change, not a 2020 one). EA888 Gen 3 is one of the highest-volume engine families in the world and had resolved the chain-tensioner and heavy oil-consumption problems of Gen 1/2, giving it a well-documented high-mileage record. It stops short of the top band on known recurring wear items rather than design risk: the composite water pump/thermostat module, PCV valve failure, direct-injection intake carbon buildup, and mild oil consumption on higher-mileage examples. The S tronic is a mature unit but its mechatronics and clutch packs are an expensive out-of-warranty exposure a torque-converter automatic does not carry.

The B9 A4's cabin was the material benchmark of the compact luxury sedan class and reviewers said so consistently — dense soft-touch surfaces across every touched panel, real metal and open-pore wood inlays, and switchgear damping better than the 3 Series or the C-Class of the same period. The 2020 facelift added the 10.1-inch MMI touch response display with haptic feedback and a higher-resolution Virtual Cockpit, so perceived quality of the screens caught up with the rest of the interior. Class-leading for the price.

Mechanical assembly is a strength — Ingolstadt-built, consistent panel gaps, a quiet cabin, and no meaningful rattle or squeak reporting even on six-year-old examples. What keeps it out of the 80s is electronic initial quality rather than build: 2020 is the MIB3 launch year for the A4 and the resulting infotainment reboot complaints are exactly the kind of defect that lands in initial-quality surveys, and Audi as a brand sits at or near the bottom of J.D. Power's Initial Quality Study on the strength of infotainment and electronics problems.

Audi runs roughly 300 US dealers — good metro and suburban density but noticeably thinner than a mainstream brand in rural and small markets, so an owner outside a metro can face a long drive for warranty or software work, which matters for a car whose defining defect is fixed by a dealer-only software update. Service satisfaction itself is a brand strength: Audi has repeatedly placed at or near the top of J.D. Power's Customer Service Index among premium brands and announced its best-ever CSI ranking in a recent study year.

Normal-to-expensive by luxury standards and clearly expensive against the market as a whole: RepairPal puts A4 annual repair and maintenance at $739 — level with the luxury midsize average but well above the $652 all-vehicle figure — with a 13% chance any given repair is severe. The EA888 engine has deep independent-specialist and aftermarket support, which helps, but the B9 is a longitudinal MLB Evo car rather than an MQB one, so it shares far less hardware with high-volume VWs than an A3 does; quattro driveline, air-suspension-adjacent chassis parts, LED lighting units and the MMI head unit are all dealer-priced, and a failed head unit is a four-figure job when software does not resolve it.

2020 is the year the A4 gained the screen: the facelift replaced the previous dash-top display and console rotary controller with a 10.1-inch touchscreen standard across the range. It is a real jump over 2019 but only mid-pack against a 7–15.5 in band that now runs to 15-inch tablets.

MIB3 is genuinely quick — Audi claims roughly ten times the processing power of the outgoing head unit and the graphics are among the sharpest in the class — but 2020 is the transition year and it shows: touch-and-haptic replaced a console rotary controller that reviewers and owners liked, and several found the new layout more distracting to use on the move. Fast and handsome, with a real ergonomic regression on the debit side.

Both protocols are standard on every 2020 trim, which is more than several rivals managed, but both are wired — MY2020 A4/A5 cars with MIB3 do not support wireless CarPlay from the factory. That is textbook middle-band "wired standard," and it is a real 2020-versus-2022 gap: Audi enabled wireless Apple CarPlay on this car in later model years.

The volume Premium has no built-in navigation at all — MMI Navigation plus is a $1,600 package on Premium Plus and standard only on Prestige, so most 2020 A4 buyers navigate through their phone. Voice control is competent command-and-control with natural-language destination entry when the nav package is fitted, but it is not the free-form assistant the top band describes, and it is optional equipment on the car people actually bought.

The optional Bang & Olufsen 3D system is the strong end of this item — a 19-speaker setup reviewers describe as delightful — and the standard 10-speaker Audi sound system is clean if unexciting. Held below 80 because the good system is a Prestige/upper-package item rather than something a Premium buyer can readily add.

The 12.3-inch Audi virtual cockpit is one of the best digital clusters on sale and the facelift brought a next-generation version, but the 2020 volume Premium does not have it — it runs analog dials with a small color driver information display, and virtual cockpit plus arrives with Premium Plus content. Firmly "full digital on upper trims only," and in 2020 it sat behind a package price rather than being simple trim content.

No whole-vehicle over-the-air updating exists on the B9 platform. MIB3 brought an embedded LTE modem that pulls Audi connect data and navigation map content over the air, but control-module and feature updates require a dealer visit, and Audi shipped no feature-adding software drops to 2020 A4 owners. Bottom of the infotainment-data-only band, and worse than later years because the connected services that carry map data are themselves optional on the volume trim.

myAudi with Audi connect CARE covers the core remote set — lock/unlock, remote engine start, vehicle status, stolen-vehicle locator and emergency call — and CARE runs complimentary rather than subscription-gated. It stays mid-band because there is no phone-as-key on the B9 A4 at any trim, Audi offers no key-fob remote start (app only), and the app has a long-standing owner reputation for slow refreshes and login trouble.

MIB3 modernized the connectors — the 2020 car uses USB-C and drops the AUX input entirely — but the provision is thin on the volume Premium: two front ports, no rear-seat outlets, no wireless charging and no household AC power. The Audi phone box wireless charger and the pair of rear USB ports are Premium Plus content.

Push-button start is standard on every 2020 A4 but proximity entry is not — Audi advanced key sits inside the Convenience package on the Premium and only comes as trim content from Premium Plus up, so the entry car still needs the fob in hand. Remote start is app-only, and there is no digital or phone key on this platform.

The volume Premium ships with a rearview camera and nothing else — front and rear acoustic parking sensors require the Convenience package. What separates 2020 from later years is how far up the range the good hardware sits: the top-view surround camera and the automated park assist are Prestige equipment in 2020, where by 2022 the 360 camera had moved down to Premium Plus.

A head-up display exists on the 2020 A4 but only as standard equipment on the top Prestige trim — a Premium or Premium Plus buyer has no path to it at any price. Textbook "HUD limited to top trims," with the quality of the unit itself keeping it in the middle of that band rather than the bottom.

The hardware is easy to live with — IIHS rates the A4's LATCH ease of use Good, with visible lower anchors and clearly labelled tethers — but the space is not. 35.7 in of rear legroom makes a rear-facing seat a real negotiation with the front passenger, only the two outboard positions carry complete LATCH, and a 12 cu ft trunk swallows one stroller and little else.

Crash performance is strong — 5-star NHTSA overall and an IIHS Top Safety Pick with Good in all six crashworthiness tests — but the trim families actually buy is poorly equipped in 2020. The Premium's standard sheet is AEB, forward collision warning, auto high beams and a backup camera; blind-spot monitoring, any lane assistance and adaptive cruise all cost extra or are unavailable, and the Premium's headlights rate Marginal.

Four adults travel in quiet, well-seated comfort and the rear headroom is genuinely good, but the amenities that make long trips with kids workable are thin: rear USB ports and wireless charging only arrive with Premium Plus, three-zone climate with rear controls is optional, there is no rear-seat entertainment, and 12 cu ft of luggage space with the seats occupied is the binding constraint on a family of four.

A compact, easy-sightline sedan with a smooth engine and imperceptible shifts once moving, which is most of what a commute asks for. Two things hold it in the middle band: the seven-speed S tronic's well-documented hesitation pulling away from a stop in traffic, and the fact that stop-and-go adaptive cruise — the single biggest fatigue reducer in a commute — is not available on the volume trim at all in 2020.

An expensive car to commute in. The volume 45 TFSI quattro returns 27 MPG combined on required premium fuel, which the EPA prices at $2,800 a year — well above what a mainstream commuter sedan costs to run — and Audi dealer-rate consumables sit on top of that.

The footprint is genuinely urban-friendly — a compact sedan under 186 in long with a 38.1 ft curb-to-curb turning circle and a low cowl — but the camera and sensor help that makes tight parking painless is missing on the car most people bought: the Premium has a rearview camera only, parking sensors need a package, and the top-view camera is Prestige-exclusive in 2020.

Not a work vehicle in any meaningful sense: the A4 sedan carries no US tow rating, has no bed or load floor, and offers 12 cu ft of trunk behind a fixed rear bulkhead. The 40/20/40 fold and pass-through let it carry long thin items and nothing else.

A luxury sedan with leather upholstery, low-profile tires and dealer-rate service is the opposite of a wear-friendly work tool. The EA888 2.0T and quattro driveline are well-proven in high volume, which keeps this above the floor, but there is no fleet reputation, no wash-out interior option and no fixed-cost service network behind it.

Essentially no work-oriented provisions: no onboard AC power, no bed or tie-down system beyond trunk hooks, no factory hitch or roof-rail attachment on the sedan, and no upfit ecosystem. There is nothing here for a trade to build on.

Strong fundamentals for a tourer — supple-but-controlled ride, quiet cabin, well-bolstered sport seats and roughly 413 miles of combined range on a 15.3-gallon tank. What keeps it out of the top band is the driver-assist side of the item: adaptive cruise with Traffic Jam Assist is the single most effective fatigue reducer on a long day, and in 2020 it is Prestige-only, so the representative A4 does its miles on plain cruise control.

quattro all-wheel drive on the volume 45 TFSI is a real asset on a snowy or gravel access road, and it is what lifts this above the pavement-bound floor. Everything else works against it: sedan ride height, no factory roof rails or hitch, no published tow rating, no onboard power and a trunk that will not take bulky outdoor gear.

The 40/20/40 split-folding rear seatback with a center pass-through is more flexible than the segment norm and handles skis or long boxes, but it is folding into only 12 cu ft of trunk through a sedan's letterbox aperture. No underfloor storage, no roof attachment points, no hitch — bulky gear simply does not fit.

A sharp, secure handler by consensus — precise turn-in, well-controlled body motions and quattro roadholding that reviewers rate highly, achieved without the usual ride penalty. It sits below the top band because the A4's competence is more clinical than exploitable: the chassis leans on grip and stability rather than adjustability, and it is not the car enthusiasts pick over a 3 Series or G70 in this segment.

The weakest of the A4's dynamic traits and the one reviewers openly disagree about. Accuracy is not in question, but the electric rack is subdued around town and on the highway and only starts communicating when the car is pushed — several outlets call it outright numb. That is the middle band: precise enough, short on feedback.

A genuine strength. Reviewers rate the A4's brakes among the best in the class not only for absolute stopping power but for the quality of the pedal in ordinary driving — progressive and easy to modulate to a smooth stop, which is where most brake systems disappoint.

Once rolling, the 248-hp 2.0T and seven-speed S tronic are close to seamless — smooth power delivery and shifts reviewers describe as imperceptible. The recurring flaw is the dual-clutch's low-speed calibration: a noticeable hesitation pulling away from a stop that reviewers single out as annoying in traffic. That drivability gap is exactly the middle band, and it is a pre-mild-hybrid trait of the 2020 car.

The EA888 2.0T is better isolated than most turbo fours — Edmunds rates it quieter than its direct rivals, and there is no coarseness or drone through the controls at cruise. It stops short of the top band because the four-cylinder is merely unobtrusive rather than pleasant: there is no character to the sound, which is what separates the A4 from the six-cylinder cars above it.

38.1 ft is middling for a compact sedan and lands low in a 34–40 ft band where the best cars turn inside 36 ft — the quattro front driveline costs the A4 some steering lock.

One of the A4's clearest wins. Standard 12-way power sport seats with thigh extension and power lumbar, a wide-ranging tilt/telescope column and a low cowl give an excellent driving position for a broad range of body sizes, and the physical climate controls survive below the new touchscreen. The one deduction is the 2020 changeover itself — moving primary infotainment control from a console rotary dial to a dash-top touchscreen made a well-sorted layout worse to operate on the move.

The sensible choice in a segment full of more characterful cars. The A4 is quick enough (5.2–5.3 s to 60 in instrumented tests), grippy and beautifully damped, but the numb steering, the quiet four-cylinder soundtrack and quattro's stabilizing hand make it satisfying rather than exciting — pleasant, and rarely the reason anyone takes the long way home.

The 2020 facelift made the base Premium notably better stocked than the pre-refresh car: the new 10.1-inch MMI touch display with Apple CarPlay and Android Auto is standard on every A4 and is one of the largest standard screens in the class, alongside full-LED headlights, a power sunroof, leather seating, tri-zone climate, rain-sensing wipers and a 10-speaker audio system. What holds it to a competitive rather than generous score is that the driver-assistance content most buyers expect — Audi side assist blind-spot monitoring, rear cross-traffic assist, parking sensors — plus Virtual Cockpit and wireless charging all sit behind the Premium Plus step or the Convenience package, and the base car is front-wheel drive.

The 2020 A4's pricing is one of the more favourable points in the B9 run: $38,395 delivered for a front-drive Premium undercuts a 2020 BMW 330i and Mercedes C 300 by roughly $3,000–$4,000, and the 248-hp 45 TFSI quattro at $41,895 delivered buys AWD and mild-hybrid assistance for about what a rear-drive 330i costs. Against that, the volume Premium Plus quattro lands near $45,000, the packaging pushes common safety kit up a trim, and the interior — while class-leading in material quality — does not deliver the outright driver engagement a 3 Series does for the money.

Six sedan configurations for 2020 — Premium, Premium Plus and Prestige, each with the 188-hp 40 TFSI front-drive or the 248-hp 45 TFSI quattro — span $38,395 to $50,945 delivered, with the 349-hp S4 above them and the A4 allroad wagon alongside. That is broader than the later B9 years, which dropped the front-drive 40 and so lost the cheap entry point; the S line and Black Optic appearance packages layer on top. The only real gap is that AWD is bundled to the more expensive engine rather than orderable on the base car.

18,341 US deliveries in 2020 kept the A4 a solid mid-pack seller — more volume than any later B9 model year — but the trajectory was clearly downward, off 30% from 2019's 26,072 and 46% from 2018's 34,220. COVID explains part of the 2020 drop, yet the decline predates it and continued afterwards, and the A4 was already well behind the BMW 3 Series and Mercedes C-Class in a segment being drained by compact luxury SUVs.

The four rings carry real aspirational pull in the US — design-led, tech-forward, with quattro as a genuine engineering asset rather than a marketing word — and in 2020 Audi was riding the e-tron launch and a reputation for the best cabin in the compact luxury class. It sits a step behind BMW and Mercedes on outright prestige and on resale support, which is why this is a strong score rather than a top one.

Scored on buyer benefit, 2020 was one of the best years to buy an A4. The pandemic sales collapse put Audi Financial Services into full support mode — 0% APR for up to 72 months on select 2020 models, a $1,000 loyalty incentive on MY2020 cars ($2,000 on leftover MY2019s), and 60-day first-payment deferrals — on top of the ordinary pre-chip-shortage discounting on a slow-selling sedan. This is the mirror image of the 2022 car, which sold at MSRP with essentially no incentive cash.

2020 is the facelift year and the freshest the B9 ever felt: new front and rear bumpers, headlights, taillights and a shorter grille bringing Audi's current design language, a lowered shoulder line with quattro blisters, the rotary MMI controller replaced by a 10.1-inch MMI touch display, and a 12-volt mild-hybrid system added to the 45 TFSI. The platform underneath dates to 2017 and no all-new A4 was imminent, so this scores as a recently refreshed rather than genuinely new generation.

The refreshed 2020 A4 was the best-reviewed year of the B9's later life: U.S. News ranked it #1 in Luxury Small Cars at 8.6/10 — a higher score than the 8.4 the 2022 car managed — praising the engine range, the ride/handling balance and a cabin widely called the segment's finest, and Edmunds rated it a class favourite. It still was not the outright comparison-test winner (the 3 Series takes it on driver engagement, and the A4 drew no 10Best or NACTOY nod for 2020), so this is strong standing rather than a clean sweep.