Certified Benz & Beemer Compares 2011 Audi R8 VS 2011 Mercedes SLS Near Phoenix, AZ

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2011 Audi R8

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2011 Mercedes SLS

Safety Comparison

For enhanced safety, the front seat shoulder belts of the Audi R8 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Mercedes SLS doesn’t offer height-adjustable seat belts.

The R8 has a standard Audi Backguard System, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Audi Backguard System moves the headrests forward to prevent neck and spine injuries. The SLS doesn’t offer a whiplash protection system.

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

Both the R8 and the SLS have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front seatbelt pretensioners, four wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Warranty Comparison

The R8’s corrosion warranty is 8 years and unlimited miles longer than the SLS’ (12/unlimited vs. 4/50,000).

Audi pays for scheduled maintenance on the R8 for 1 year and 5000 miles. Audi will pay for oil changes, tire rotation, lubrication and any other scheduled maintenance. Mercedes doesn’t pay scheduled maintenance for the SLS.

Engine Comparison

As tested in Motor Trend the R8 5.2 FSI manual is faster than the Mercedes SLS:



Zero to 30 MPH

1.3 sec

1.5 sec

Zero to 60 MPH

3.4 sec

3.6 sec

Fuel Economy and Range Comparison

The R8 has 1.3 gallons more fuel capacity than the SLS (23.8 vs. 22.5 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

The R8 stops much shorter than the SLS:



70 to 0 MPH

153 feet

164 feet

Car and Driver

60 to 0 MPH

96 feet

100 feet

Motor Trend

Suspension and Handling Comparison

The R8 has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The SLS’ suspension doesn’t offer adjustable shock absorbers.

The R8 4.2 FSI handles at 1.02 G’s, while the SLS pulls only 1.00 G’s of cornering force in a Motor Trend skidpad test.

The R8 5.2 FSI executes Motor Trend’s “Figure Eight” maneuver quicker than the SLS (23.7 seconds @ .82 average G’s vs. 24 seconds @ .84 average G’s).

Chassis Comparison

The R8 is 8 inches shorter than the SLS, making the R8 easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver, the interior of the R8 4.2 FSI is quieter than the SLS:



At idle

49 dB

57 dB


79 dB

84 dB

70 MPH Cruising

70 dB

72 dB

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