2021 Audi A4 vs. Its Competition

2021 Audi A4
Aaron Cole Aaron Cole Managing Editor

The Audi A4 is most often compared to other German luxury sedans including the Mercedes-Benz C Class and BMW 3-Series.

The Audi is more reserved than both, and lacks the gee-whiz tech found in the Benz or the blistering powertrains from the 3-Series.

Audi’s more conservative but keeps pace with both.

The Cadillac CT4 is new and we haven’t yet driven it.

The current Lexus IS is on its way out, and will be replaced by a new version so discounts should be plentiful.

The Alfa is unloved—and a little catawampus inside, if we’re honest—but a blast to drive.

2021 Audi A42021 Audi A4
#3 in Wagons
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2021 BMW 3-Series (330e)2021 BMW 3-SeriesGet Your Price2020 Cadillac CT42020 Cadillac CT4
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2020 Lexus IS F Sport Blackline2020 Lexus IS
2020 Mercedes-Benz C-Class2020 Mercedes-Benz C Class
2020 Alfa Romeo Giulia Quadrifoglio2020 Alfa Romeo GiuliaGet Your Price
Quick Specs
The 2021 Audi A4 blends a conservative luxury compact car with spicy performance and robust wagon flavors.
The flexible 2021 BMW 3-Series lineup offers something for everyone, so long as they’re not smitten with SUVs.
The entry-level 2020 Cadillac CT4 sedan presents a value that is quickly eroded by a lack of features standard on other luxury makes.
The 2020 Lexus IS is polished and poised, but ultimately short on compelling qualities.
The 2020 Mercedes-Benz C-Class is as gorgeous inside as it is outside, and it has moves to match.
The 2020 Alfa Romeo Giulia combines agility and power in a sensuous Italian package.
MSRP From     
Gas Mileage     
20 MPG City / 31 MPG Hwy16 MPG City / 36 MPG Hwy20 MPG City / 34 MPG Hwy18 MPG City / 30 MPG Hwy17 MPG City / 35 MPG Hwy17 MPG City / 33 MPG Hwy
Intercooled Turbo Gas/Electric I-4Intercooled Turbo Premium Unleaded I-4Turbocharged I4Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4
EPA Class     
Compact CarsCompact CarsCompact CarsCompact CarsCompact CarsMidsize Cars
Style Name     
Premium 40 TFSI quattro330i Sedan4-Door Sedan LuxuryIS 300 F SPORT RWDC 300 SedanRWD
All WheelRear Wheel DriveRear Wheel DriveRear Wheel DriveRear Wheel DriveRear Wheel Drive
Passenger Capacity     
Passenger Doors     
Body Style     
quattro SedanSedanSedanSedanSedanSedan
Auto-Shift Manual w/ODAutomatic w/ODAutomaticAutomatic w/ODAutomatic w/ODAutomatic w/OD
Detailed Spec Comparison
 2021 Audi A4 vs. 2021 BMW 3-Series2021 Audi A4 vs. 2020 Cadillac CT42021 Audi A4 vs. 2020 Lexus IS2021 Audi A4 vs. 2020 Mercedes-Benz C Class2021 Audi A4 vs. 2020 Alfa Romeo Giulia