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2021 Audi A4 Review

The Audi A4 has undergone a few hardware and lineup changes for 2021. There is no longer a front-wheel-drive model, which means all 2021 Audi A4s have Quattro all-wheel drive. What’s more, the base 2.0-liter engine, which used to put out 188 horsepower, now generates 201 hp, thanks to an integral new 12-volt mild hybrid system that adds 13 hp.

Let’s put the A4 in context: It’s not as much of a driver’s car as the BMW 3 Series, nor is it quite as luxurious as the Mercedes-Benz C-Class. Rather, the Audi A4 shines because it’s a polished package with a superb interior, and it’s also available as the practical and capable A4 Allroad wagon.

What’s New for 2020?

The looks of the A4 were updated for 2020, so the changes this year are limited to hardware and equipment packages. Most notably, all 2021 Audi A4s have Quattro AWD, and the engine in the A4 40 TFSI Quattro model is a turbocharged 2.0-liter inline-4 that now puts out 201 hp. The powertrain features a belt-driven 12-volt mild hybrid system contributing 13 hp to that output.

Also increased in power is the 2021 Audi A4 45 TSI Quattro. It had 248 hp last year, but it now has 261, again thanks to the new mild hybrid system that goes basically unnoticed by the driver.

Other major changes: Wireless Apple CarPlay is standard on the 2021 Audi A4, and so is a lane-departure warning system. See the Audi A4 models for sale near you

What We Like

  • All A4s are now Quattros
  • Sharp styling
  • Beautiful interior
  • Cool technology
  • More power for 2021
  • Good ride quality
  • Allroad is a good SUV alternative

What We Don’t

  • Blind spot warning should be standard
  • Why are rear-side airbags optional?
  • No manual transmission
  • Allroad’s body cladding looks rugged, but it’s plastic
  • Dual-clutch transmission can be clunky at parking lot speeds

How Much?

  • A4 –- $39,100-$49,800
  • A4 Allroad –- $44,600-$54,500

Fuel Economy

As of late May, the fuel economy for the 2021 Audi A4 and the 2021 A4 Allroad Quattro hadn’t been announced. Here’s what you can expect:

The base A4, the 2021 Audi A4 40 TFSI Quattro model with 201 hp, should be a bit less efficient than last year’s base car, a front-driver with 188 hp. That car was rated by the Environmental Protection Agency at 27 miles per gallon in the city, 35 mpg on the highway and 30 mpg in combined driving.

The 2021 Audi A4 45 TSI Quattro, with 261 hp, will be similar to last year’s A4 Quattro with 252 hp, which was rated at 24 mpg city/32 mpg hwy/27 mpg combined.

As for the 2021 Audi A4 Allroad Quattro, available only with the 261-hp powertrain, we expect it to remain close to last year’s 248-hp model, which was rated at 23 mpg city/31 mpg hwy/26 mpg combined.

Both versions of the turbo 2.0-liter 4-cylinder engine with 201 or 261 hp have an automatic stop-start system that saves fuel at stoplights.

Standard Features & Options

The 2021 Audi A4 is offered in Premium, Premium Plus and Prestige trim levels.

The base model, the A4 40 TFSI Quattro Premium, has 17-in forged alloy wheels, wireless Apple CarPlay, the Audi Virtual Cockpit, a walnut interior trim and heated front seats.

If you order an A4 40 TFSI Quattro Premium Plus, it adds 18-in alloy wheels, adaptive cruise control, a handy top-view camera system and two rear USB ports.

The A4 40 TFSI Quattro Prestige improves on that with a powerful Bang & Olufsen sound system, a head-up display and a navigation package.

The Audi A4 45 TFSI Quattro models, the ones powered by a 261-hp 2.0-liter, are similarly equipped at each level, but the base A4 45 rides on 18-in wheels, not 17 inches.

The most common option package on the 2021 Audi A4 is a $1,800 Convenience Package that includes Sirius XM radio, an anti-theft alarm, blind spot warning, keyless entry/ignition, a heated steering wheel and front and rear parking sensors. Other packages are a $1,500 navigation system and a $1,300 Warm Weather Package with vented seats and rear sunshades.

The A4 45 TFSI Quattro also can be ordered with a few more items, most notably an S Line interior package with brushed aluminum trim ($500), a Black Optic package with gloss-black exterior trim ($500) and 19-in black alloy wheels with summer tires ($800).

Stand-alone options on the 2021 A4 are a 19-speaker Bang & Olufsen sound system ($950), rear-side airbags ($350) and sport suspension ($500) that lowers the car by about an inch.


The National Highway Traffic Safety Administration has given the Audi A4 a 5-Star Overall Safety Rating, most recently for the 2019 model year. The Insurance Institute for Highway Safety has given the A4 a coveted “Top Safety Pick+” designation.

While the Audi A4 and A4 Allroad come standard with automatic emergency braking, other features such as blind spot monitoring and adaptive cruise control are reserved for upper trim levels. Even side-impact rear airbags are an option.

Behind the Wheel

The 2021 Audi A4 feels neutral, responsive and sprightly. Especially the A4 45 TFSI Quattro model with 261 hp. With standard Quattro AWD, these compact Audi sedans power out of turns with reassuring stability.

The Virtual Cockpit digital gauge display shows regular information such as road and engine speeds, but it also brings the navigational map right in front of the driver. This full-color feature was a major factor in Autotrader’s decision to mention the A4 in our 2017 list of 10 Best Car Interiors Under $50,000. In all trim levels, cabin space and the quality of materials are impressive.

If there’s one gripe, it’s this: The A4’s steering, though precise and substantial, isn’t as tactile as we’d like. Perhaps this is apparent only because the rest of the car is so good, especially in its ability to blend comfort with control.

The A4 Allroad has an extra 1.3 inches of ground clearance over the sedan, which enables it to take muddy or snowy roads in stride.

Other Cars to Consider

2021 BMW 3 Series — This is the one all your friends will get. It’s still the prototypical midsize sports sedan for driving enthusiasts.

2021 Mercedes-Benz C-Class — The midsize Benz offers plenty of luxury, equipment and performance.

2021 Genesis G70 — A credible alternative to sporty rivals. It has a small back seat and lots of equipment for the money.

2021 Volvo V60 Cross Country — This A4 Allroad competitor was new for 2019. This Scandinavian take on European luxury can be ordered with an actual wool interior.

2021 Subaru Outback — Not a luxury car, but it should be cross-shopped with the Audi A4 Allroad. It has most of the features of the A4 Allroad for about two-thirds of the price. Outback Touring models will be the best comparison.

Used Audi A6 — A bit larger and not as tech-rich as a new A4, but a used A6 offers refined manners, a gorgeous interior and an exterior that’s standing the test of time.

Used Volvo V90 Cross Country — This rugged wagon version of its S90 sedan depreciates quickly, so it’s a good alternative for an A4 Allroad. Look for a certified pre-owned one.

Used Volkswagen Golf Alltrack — If the A4 Allroad is a bit of a stretch, look into this corporate cousin, another AWD wagon. Several used 2019 VW Alltracks can be found on for between $20,000 and $25,000.

Questions You May Ask

Where is the Audi A4 made?

The A4 and the A4 Allroad come to the U.S. from Audi’s factory in Ingolstadt, Germany.

Is the 2021 Audi A4 a reliable car?

The 2021 Audi A4 has similar repair and reliability ratings as BMW. It’s better than Volvo, Alfa Romeo and Jaguar but not up to Lexus levels.

How much horsepower does the base 2021 Audi A4 have?

The base A4, called the Audi A4 40 TFSI Quattro, now has 201 hp, up 13 from last year.

Is there a sportier version of the Audi A4?

Yes. It’s called the Audi S4, and it’s powered by a turbocharged 3.0-liter V6 with 349 hp. Order the AudiSport rear differential.

Does the 2021 Audi A4 have adaptive cruise control?

It does. Adaptive cruise is standard on the 2021 Audi A4 Premium Plus.

Does Audi make an A4 wagon or an A4 coupe?

In a way. The 2021 Audi A4 Allroad effectively is a raised Audi A4 wagon. And the Audi A5 coupe shares many components with the A4.

Autotrader’s Advice

Forget the standard 2021 Audi A4 40 TFSI Quattro model and opt for the A4 45 TFSI Quattro. It has 60 more hp, and it costs only $1,800 more. It’s also available with better options, such as the Black Optic package, 19-in black wheels and the S Line interior package with brushed aluminum inlays and leather/Alcantara seats. Whichever A4 you choose, though, you’ll be getting a car that has been substantively improved for 2021. Find an Audi A4 for sale

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