2021 Audi A4 review
Audi A4 highlights
Customer rating
Pros
- Attractive cabin
- Advanced yet user-friendly technology features
- Spacious back seat
- Quick acceleration, thanks to the turbocharged engine
Cons
- Minimal steering feedback
Mileage (EPA estimate)
23 city, 31 highway, 27 combined
Pricing for current inventory
(no current inventory)
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Sleek and sophisticated style
The Audi A4 is an absolute gem of a small luxury car, packed with style and features specifically designed for comfort. Whether you're looking for the ideal city commuter car or a practical vehicle with style, the 2021 Audi A4 checks all the boxes. The 2021 Audi A4 has a well-rounded appeal that turns heads everywhere it goes. And its good looks don't stop at the exterior—the interior is trimmed with aluminum and has leather upholstery as standard. It's full of luxurious touches that make driving a treat. There's a choice of two engine options across three trims, unlocking either 201 or 261 hp, depending on how much power you want. For drivers and passengers alike, the 2021 Audi A4 is filled with entertainment options, which only become more exciting and elaborate the higher the trim. Even the base model offers a 10-speaker audio system, Apple CarPlay®, Android Auto™ connectivity, and much more. The Audi A4 really is a fantastic choice for all lifestyles. While we currently do not have many 2021 Audi A4 models on our lots, we look forward to selling more in the future. If you love the 2021 model, you should also consider prior model years of the Audi A4 with similar features.
All Audi A4 years
Not sure what year to select? Learn about each Audi A4 generation from 2012 to 2025
What is new for the 2021 Audi A4?
- The A4 is available in a variety of new trims, including the Premium S-Line, S-Line Premium, S-Line Premium Plus, and S-Line Prestige.
- A4 trims have been upgraded with A/C Seat(s), Heated Steering Wheel, Leather & Suede Seats, and Rear Spoiler as standard equipment this year.
- Rear Sunshade features are now available as options on select trims.
- The Premium trim now comes with Memory Seat(s), Parking Sensors, Blind Spot Monitor, Lane Departure Warning, Smart Key, Bang & Olufsen Audio, and Navigation System as standard equipment.
- The Premium Plus trim now comes with Lane Departure Warning and Automated Cruise Control as standard equipment.
2021 Audi A4 trims
Curious how Audi A4 trims differ? Use our side-by-side vehicle comparison to see the differences and similaritiesPremium:
Includes 10.1-inch touchscreen; 10-speaker audio system; Bluetooth, Android Auto, and Apple CarPlay connectivity; leather upholstery; push-button start; rearview camera; and more.
Premium Plus:
Adds 360-degree parking camera system, adaptive cruise control, parking sensors, 12.3-inch digital display, and more.
Prestige:
Unlocks 19-speaker Bang & Olufsen audio system, head-up display, parallel park assist, traffic sign recognition, and more.
Audi A4 photos
5 reasons to buy the 2021 Audi A4
1. Luxurious interior

As a luxury sedan, the 2021 Audi A4 is, unsurprisingly, composed of high-end materials. The upholstery is leather across every trim, and the front seats are eight-way power-adjustable, ensuring comfort even on long rides. The materials inside the cabin include glossy coatings and aluminum, and ambient lighting comes standard.
2. Two engine options

The engine options for the 2021 Audi A4 have been streamlined to two choices across each trim: a 2.0L turbocharged four-cylinder engine offering 201 hp, or a retuned version giving 261 hp on A4 S-line models. The base engine has plenty of pep for most people, but if you want to zoom down the highway for weekend getaways, the more powerful S-line engine is the ideal pick.
3. Plenty of entertainment

As a luxury car, the 2021 Audi A4 has more than enough entertainment options to keep everyone happy. The base Premium model includes a Multi Media Interface (MMI) infotainment system with a 10.1-inch touchscreen and a 10-speaker audio system, as well as Apple CarPlay, Android Auto, and Bluetooth® connectivity. The top Prestige trim features a premium 19-speaker Bang & Olufsen® audio system.
4. Lots of driver aids

The base 2021 Audi A4 model comes with a range of driver aids, including a rearview camera, LED headlights, lane departure warning, and forward collision warning. And higher trims have even more to offer. The Premium Plus trim adds lane keeping and traffic jam assist, as well as adaptive cruise control; the Prestige trim unlocks a 360-degree parking camera system, parallel park assist, and more.
5. Practical for every lifestyle

Though the 2021 Audi A4 is a luxury car, it's still a practical choice for everyday driving. In addition to being nimble on the road, the A4 has more than enough space for suitcases, golf clubs, or even camping equipment with its 12 cu-ft of trunk space. The vehicle seats five—including space and apparatus for three child seats—with dual-zone air-conditioning to ensure everyone is comfortable. Speaking of comfort, the A4 has 37.3 inches of front headroom and 41.3 inches of front legroom.
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Ratings & reliability
RepairPal gave the Audi A4 an overall reliability rating of 3.5 out of 5 stars, which RepairPal describes as Above Average. This rating ranks Audi A4 35th out of 68 among Luxury Midsize Cars.
View RepairPal's full rating of the Audi A4Audi A4 features and specs
Curious how Audi A4 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities
S-Line Premium Plus 4WD/AWD 4D Sedan
Standard Features
- 4WD/AWD
- ABS Brakes
- Air Conditioning
- Alloy Wheels
- AM/FM Stereo
- Android Auto
- Apple CarPlay
- Automatic Transmission
- Auxiliary Audio Input
- Blind Spot Monitor
- Bluetooth Technology
- Front Seat Heaters
- Heated Mirrors
- Heated Steering Wheel
- Leather Seats
- Memory Seat(s)
- Overhead Airbags
- Parking Sensors
- Power Locks
- Power Mirrors
- Power Seat(s)
- Power Windows
- Rear Defroster
- Rear View Camera
- Satellite Radio Ready
- Side Airbags
- Smart Key
- Sunroof(s)
- Traction Control
- Turbo Charged Engine
- A/C Seat(s)
- Leather & Suede Seats
- Navigation System
- Rear Spoiler
Drive Wheels
All Wheel (4WD/AWD)
Engine size
2.0L
Horsepower
261
Torque (ft-lbs)
273
Engine type
Turbo Gas
Fuel capacity
15.3
Wheelbase
111"
Overall length
187.5"
Width
72.7"
Height
56.2"
Leg room
F 41.3"/R 35.7"
Head room
F 37.3"/R 37.4"
Front tires
P245/40HR18
Rear tires
P245/40HR18
Seating capacity
5
Transmission
Automatic
2021 Audi A4 FAQ
The base model of the 2021 Audi A4 has a 2.0L turbocharged four-cylinder engine with 201 hp. There's a retuned version of the same 2.0L turbo-four, available on Audi A4 S models, with 261 hp. This more powerful version is great if you love a spirited drive.
With the entry-level 2.0L turbocharged four-cylinder engine, the 2021 Audi A4 can achieve a top speed of 130 mph. The higher-spec 2.0L engine can go from zero to 60 mph in 4.8 seconds (according to the manufacturer, when new).
There are three trims available for the 2021 Audi A4: Premium, Premium Plus, and Prestige. The base model boasts plenty of luxurious features, which only increase in the Premium Plus and Prestige trims.
More about the 2021 Audi A4
Color options

Exterior colors:
Brilliant Black
Ibis White
Quantum Grey
Interior colors:
Atlas Beige
Black
Magma Red
Nougat Brown
Rotor Grey
Interior details
The Audi A4 is packed with high-end touches. The 2021 model seats five passengers, including the driver, on leather upholstery, in a cabin trimmed with luxurious materials. The front seats are heated and have eight-way, power-assisted adjustability. Plus, there's 12 cu-ft of trunk space in the 2021 Audi A4—enough for several people's luggage or camping gear for an adventurous weekend.
Child seat details
The 2021 Audi A4 can fit three child seats inside. It has two complete sets of LATCH connectors for the rear outboard seats, as well as a tether anchor for the middle seat. This means it can accommodate a range of different seat types.
Performance
The base engine for the 2021 Audi A4 is a 2.0L turbocharged four-cylinder with 201 hp, which is powerful enough for most people's needs. However, for an added boost, you can shop for an S-line model—these have a retuned 2.0L engine with 261 hp. Both engine options have a seven-speed dual-clutch automatic transmission, and all models are all-wheel drive.
The base 2.0L four-cylinder engine achieves good fuel economy, with an EPA-estimated 28 combined mpg.1 The higher-spec 2.0L engine for the 2021 Audi A4 S can reach zero to 60 in 4.8 seconds (according to the manufacturer, when new), and it gets an EPA-estimated 27 mpg combined.
Year comparison
2007-2016 Audi A4 (fourth generation)
The fourth generation of the Audi A4 was entirely new. As time went on, this generation received several facelifts, including 40 changes and new elements in the 2012 re-release alone.
For the 2012-2016 A4, the hood became more arched and its exterior features more angular. The interior was refined, with inlays featuring glossy materials and chrome accents. Audi also upgraded the suspension and added a new engine option.
In 2012, Audi added LED daytime running lights and introduced the L trim, with a wheelbase that was 2.4 inches longer than the standard model. The 2012-2026 A4 also offered a choice of four engine options, ranging between 160 hp and 272 hp.
2016-present Audi A4 (fifth generation)
Audi released a lighter-but-larger version of the A4 for its fifth generation, which was aerodynamically enhanced to reduce drag. The 2016 Audi A4 also featured a single-frame grille and headlights reminiscent of those on the Audi A6. The Audi Virtual Cockpit instrument panel was introduced between 2016 and 2018, and the vehicle could be connected to the internet via the LTE network.
While there were no other major exterior changes, the front fascia was made to look a little more aggressive on the 2019 model. The luxurious interior was tweaked to appear sportier, and the manual transmission was discontinued.
In 2020, the exterior was refreshed once more and the infotainment system updated, while 2021 gained more standard features for the A4, as well as higher hp for both engine options.
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We hope you found this information helpful. This content is intended to inform and is not meant to indicate that a particular vehicle is currently available or recommended for you.
Statements of fuel economy or EV range are based on EPA and other third-party estimates for vehicles when new. Fuel economy and EV range will degrade with time and vary based on age, driving conditions, vehicle history, and other conditions. See fueleconomy.gov for more info.
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