Certified Benz & Beemer Compares 2010 Audi R8 VS 2010 Porsche 911 Near Phoenix, AZ

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2010 Audi R8

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VS

2010 Porsche 911

Safety Comparison

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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 Porsche 911 Cabriolet 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 911 doesn’t offer a whiplash protection system.

To provide maximum traction and stability on all roads, All-wheel drive is standard on the R8. But it costs extra on the 911.

The R8 offers optional parking sensors to help warn the driver about vehicles, pedestrians or other obstacles behind or in front of their vehicle. The 911 doesn’t offer a front parking aid.

Both the R8 and the 911 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

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The R8’s corrosion warranty is 2 years longer than the 911’s (12 vs. 10 years).

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. Porsche doesn’t pay scheduled maintenance for the 911.

There are over 30 percent more Audi dealers than there are Porsche dealers, which makes it easier to get service under the R8’s warranty.

Reliability Comparison

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To reliably power the ignition and other systems and to recharge the battery, the R8 has a standard 190 amp alternator. The 911’s 150 amp alternator isn’t as powerful.

To reliably start during all conditions and help handle large electrical loads, the R8 has a standard 520 amp battery. The 911’s 340 amp battery isn’t as powerful.

Engine Comparison

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The R8 has more powerful engines than the 911:

Horsepower

Torque

R8 4.2 FSI 4.2 DOHC V8

420 HP

317 lbs.-ft.

R8 5.2 FSI 5.2 DOHC V10

525 HP

391 lbs.-ft.

911 3.6 DOHC 6 cyl.

345 HP

288 lbs.-ft.

911 S 3.8 DOHC 6 cyl.

385 HP

310 lbs.-ft.

911 GT3 3.6 GT3 6 cyl.

415 HP

300 lbs.-ft.

911 Turbo 3.6 turbo 6 cyl.

480 HP

460 lbs.-ft.

As tested in Car and Driver the R8 5.2 V10 is faster than the Porsche 911 (manual transmissions tested):

R8

911 S

911 GT3

Zero to 60 MPH

3.5 sec

4 sec

4 sec

Zero to 100 MPH

7.9 sec

9.5 sec

9.3 sec

Quarter Mile

11.7 sec

12.5 sec

12.4 sec

Speed in 1/4 Mile

122 MPH

113 MPH

116 MPH

In a Car and Driver race course test, the Audi R8 4.2 FSI was clocked 2.77 seconds faster than the Porsche 911 Turbo Coupe Carrera 4 (95.76 sec. vs. 98.53 sec.) at an average lap speed 2.7 MPH faster (94 MPH vs. 91.3 MPH).

Fuel Economy and Range Comparison

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The R8 has 6.9 gallons more fuel capacity than the 911 RWD’s standard fuel tank (23.8 vs. 16.9 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

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For better stopping power the R8’s standard brake rotors are larger than those on the 911:

R8

911

Front Rotors

14.4 inches

12.52 inches

Rear Rotors

14 inches

11.77 inches

The R8 stops much shorter than the 911:

R8

911

80 to 0 MPH

196 feet

201 feet

Road & Track

70 to 0 MPH

153 feet

159 feet

Car and Driver

60 to 0 MPH

96 feet

116 feet

Motor Trend

Tires and Wheels Comparison

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For better traction and acceleration, the R8 has larger standard rear tires than the 911 (295/30R19 vs. 265/40R18).

The R8’s 235/35R19 front and 295/30R19 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio) that provides a stiffer sidewall than the 911’s standard 40 series tires.

For better ride, handling and brake cooling the R8 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the 911.

Suspension and Handling Comparison

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The R8 has vehicle speed sensitive variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The 911 doesn’t offer variable-assist power steering.

For a smoother ride and more stable handling, the R8’s wheelbase is 11.8 inches longer than on the 911 (104.3 inches vs. 92.5 inches).

For better handling and stability, the track (width between the wheels) on the R8 is 5.9 inches wider in the front and 2.3 inches wider in the rear than the average track on the 911.

The R8’s front to rear weight distribution is more even (44% to 56%) than the 911’s (39.1% to 60.9%). This gives the R8 more stable handling and braking.

The R8 4.2 FSI handles at 1.02 G’s, while the 911 Coupe Carrera 4 pulls only .93 G’s of cornering force in a Motor Trend skidpad test.

The R8 4.2 FSI goes through Road & Track’s slalom 4.6 MPH faster than the 911 Turbo Coupe Carrera 4 (71.1 vs. 66.5 MPH).

The R8 4.2 FSI executes Motor Trend’s “Figure Eight” maneuver quicker than the Cayman S (24.3 seconds vs. 24.5 seconds).

Chassis Comparison

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As tested by Road & Track, the interior of the R8 4.2 FSI is quieter than the 911 GT2 Coupe:

R8

911

At idle

52 dB

63 dB

Full-Throttle

81 dB

86 dB

50 MPH Cruising

69 dB

72 dB

70 MPH Cruising

72 dB

76 dB

Ergonomics Comparison

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The R8’s available GPS navigation system has a real-time traffic update feature that offers alternative routes to automatically bypass traffic problems. (Service available in a limited number of metro areas.) The 911’s available navigation system doesn’t offer real-time traffic updates.

Wireless connectivity is standard on the R8, connecting the driver and passenger’s cell phones to the vehicle systems. This allows them to use the vehicle’s stereo and hand controls to place calls safely and easily. Porsche doesn’t offer wireless connectivity on the 911.

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