2020 Audi R8 vs. 2019 Mercedes AMG GT

Detailed Review, Specifications & Comparison

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The R8 has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Mercedes AMG GT doesn’t offer all-wheel drive.

Both the R8 and the Mercedes AMG GT have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.


The R8’s corrosion warranty is 7 years longer than the Mercedes AMG GT’s (12 vs. 5 years).


The battery on the R8 is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the R8’s battery 20 to 30 degrees cooler, its life is increased by years. The Mercedes AMG GT’s battery is in the hot engine compartment.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Audi 8th in reliability, above the industry average. With 10 more problems per 100 vehicles, Mercedes is ranked 13th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 10 places higher in reliability than Mercedes.


The R8 has more powerful engines than the Mercedes AMG GT:


R8 V10 5.2 DOHC V10

562 HP

R8 V10 Performance/Decennium 5.2 DOHC V10

602 HP

Mercedes AMG GT 4.0 turbo V8

469 HP

Mercedes AMG GT S Coupe 4.0 turbo V8

515 HP

Mercedes AMG GT C 4.0 turbo V8

550 HP

Mercedes AMG GT R Coupe 4.0 turbo V8

577 HP

Fuel Economy and Range

The R8’s standard fuel tank has 2.1 gallons more fuel capacity than the Mercedes AMG GT (21.9 vs. 19.8 gallons).

The R8 has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Mercedes AMG GT doesn’t offer a cap-less fueling system.


All wheel drive, available in the R8, provides the best traction for acceleration in wet, dry, and icy conditions. In corners, all wheel drive allows both outside wheels to provide power, balancing the car. This allows for better handling. The Mercedes AMG GT is not available with all wheel drive.

Brakes and Stopping

For better stopping power the R8’s standard front brake rotors are larger than those on the Mercedes AMG GT:



Front Rotors

14.4 inches

14.2 inches

Tires and Wheels

The R8’s optional tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the Mercedes AMG GT’s 35 series front tires.

For better ride, handling and brake cooling the R8 offers optional 20-inch wheels. The Mercedes AMG GT’s largest wheels are only 19-inches in the front and 20-inches in the rear.

Suspension and Handling

For better maneuverability, the R8’s turning circle is 1 foot tighter than the Mercedes AMG GT’s (36.7 feet vs. 37.7 feet).


The R8 is 4.6 inches shorter than the Mercedes AMG GT, making the R8 easier to handle, maneuver and park in tight spaces.

The design of the Audi R8 amounts to more than styling. The R8 has an aerodynamic coefficient of drag of .35 Cd. That is lower than the Mercedes AMG GT (.35 to .36). A more efficient exterior helps the R8 go faster and keeps the interior quieter. It also helps the R8 get better fuel mileage.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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