2020 Audi R8 vs. 2020 Mercedes SL

Detailed Review, Specifications & Comparison

Your buying experience includes...

business_centerProfessional Staff
account_balanceSimple Financing
local_gas_stationFull Tank of Gas
local_car_washFree Car Wash

Safety

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

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

Both the R8 and the SL 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.

Warranty

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

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

Reliability

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

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.

Engine

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

The R8 V10’s standard 5.2 DOHC V10 produces 200 more horsepower (562 vs. 362) and 37 lbs.-ft. more torque (406 vs. 369) than the SL 450’s standard 3.0 turbo V6. The R8 V10’s 5.2 DOHC V10 produces 113 more horsepower (562 vs. 449) than the SL 550’s standard 4.7 turbo V8. The R8 V10 Performance/Decennium’s standard 5.2 DOHC V10 produces 153 more horsepower (602 vs. 449) than the SL 550’s standard 4.7 turbo V8.

Fuel Economy and Range

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

The R8’s standard fuel tank has 2.1 gallons more fuel capacity than the SL (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 SL doesn’t offer a cap-less fueling system.

Transmission and Drivetrain

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

The R8 offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The SL doesn’t offer an SMG or a conventional manual transmission.

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 SL is not available with all wheel drive.

Brakes and Stopping

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

For better stopping power the R8’s brake rotors are larger than those on the SL:

R8

R8

SL

SL

Front Rotors

14.4 inches

15 inches

13.5 inches

14.2 inches

Rear Rotors

14 inches

14 inches

12.6 inches

12.6 inches

The R8 offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The SL doesn’t offer ceramic brake rotors.

Tires and Wheels

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

For better traction and acceleration, the R8 has larger standard rear tires than the SL (295/35R19 vs. 285/30R19). The R8’s optional rear tires are larger than the largest rear tires available on the SL (305/30R20 vs. 285/30R19).

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 SL’s 35 series front tires.

For better ride, handling and brake cooling the R8 offers optional 20-inch wheels. The SL’s largest wheels are only 19-inches.

Suspension and Handling

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

For a smoother ride and more stable handling, the R8’s wheelbase is 2.5 inches longer than on the SL (104.3 inches vs. 101.8 inches).

For better handling and stability, the track (width between the wheels) on the R8 is 1.9 inches wider in the front than on the SL.

Chassis

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

The Audi R8 may be more efficient, handle and accelerate better because it weighs about 300 to 350 pounds less than the Mercedes SL.

The R8 is 7.9 inches shorter than the SL, making the R8 easier to handle, maneuver and park in tight spaces.

Model Availability

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/11

The Audi R8 comes in coupe and convertible bodystyles; the Mercedes SL isn’t available as a coupe.

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

How much is your car worth?

Get the best value for your car from an Asbury dealership.

Featured Videos