Certified Benz & Beemer Compares 2017 Porsche 911 VS 2017 Audi R8 Near Phoenix, AZ

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2017 Porsche 911

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VS

2017 Audi R8

Safety Comparison

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The 911 offers optional Porsche Active Safe, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The R8 doesn't offer collision warning or crash mitigation brakes.

The 911 offers optional Porsche Connect, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The R8 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the 911 and the R8 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, post-collision automatic braking systems, daytime running lights, rearview cameras, available all wheel drive and blind spot warning systems.

Reliability Comparison

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The R8’s redline is at 8700 RPM, which causes more engine wear, and a greater chance of a catastrophic engine failure. The 911 has a 7000 to 7500 RPM redline.

J.D. Power and Associates rated the 911 first among midsize premium sporty cars in their 2016 Initial Quality Study. The R8 isn’t in the top three in its category.

J.D. Power and Associates’ 2016 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Porsche second in initial quality, above the industry average. With 26 more problems per 100 vehicles, Audi is ranked 14th, below the industry average.

J.D. Power and Associates’ 2016 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Porsche vehicles are more reliable than Audi vehicles. J.D. Power ranks Porsche second in reliability, above the industry average. With 37 more problems per 100 vehicles, Audi is ranked 11th.

Engine Comparison

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The 911 has more powerful engines than the R8:

 

Torque

911 Turbo 3.8 turbo 6 cyl.

523 lbs.-ft.

911 Turbo S 3.8 turbo 6 cyl.

553 lbs.-ft.

R8 V10 5.2 DOHC V10

398 lbs.-ft.

R8 V10 Plus Coupe 5.2 DOHC V10

413 lbs.-ft.

As tested in Car and Driver the 911 Turbo is faster than the R8 V10 Plus (automatics tested):

 

911

R8

Zero to 60 MPH

2.6 sec

2.9 sec

Zero to 100 MPH

6.3 sec

6.5 sec

Quarter Mile

10.7 sec

10.9 sec

The flat cylinder configuration of the boxer engine in the 911 lowers its center of gravity, enhancing handling stability. The R8 doesn’t offer a boxer engine configuration.

Fuel Economy and Range Comparison

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On the EPA test cycle the 911 Turbo gets better fuel mileage than the R8 V10 (19 city/24 hwy vs. 14 city/22 hwy).

Regenerative brakes improve the 911’s fuel efficiency by converting inertia back into energy instead of wasting it. The R8 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the 911’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The R8 doesn’t offer an automatic engine start/stop system.

Brakes and Stopping Comparison

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

 

911 Turbo

911 Turbo opt.

R8

R8 opt.

Front Rotors

15 inches

16.1 inches

14.4 inches

15 inches

Rear Rotors

15 inches

15.4 inches

14 inches

14 inches

The 911 stops much shorter than the R8:

 

911

R8

 

70 to 0 MPH

139 feet

153 feet

Car and Driver

60 to 0 MPH

97 feet

102 feet

Motor Trend

Suspension and Handling Comparison

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The 911 offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The R8 doesn’t offer an active sway bar system.

The 911 has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The 911’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The R8 doesn’t offer a load leveling suspension.

The 911 Turbo S Coupe handles at 1.06 G’s, while the R8 V10 Plus Coupe pulls only 1.00 G’s of cornering force in a Car and Driver skidpad test.

The 911 Turbo S Coupe executes Motor Trend’s “Figure Eight” maneuver quicker than the R8 V10 Plus Coupe (22.9 seconds @ .96 average G’s vs. 23.5 seconds @ .9 average G’s).

For better maneuverability, the 911 Turbo’s turning circle is 1.9 feet tighter than the R8’s (34.8 feet vs. 36.7 feet).

Chassis Comparison

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The Porsche 911 may be more efficient, handle and accelerate better because it weighs up to about 400 pounds less than the Audi R8.

The design of the Porsche 911 amounts to more than styling. The 911 offers aerodynamic coefficients of drag from .29 to .32 Cd (depending on bodystyle and options). That is lower than the R8 (.34 to .36). A more efficient exterior helps the 911 go faster and keeps the interior quieter. It also helps the 911 get better fuel mileage.

The front grille of the 911 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The R8 doesn’t offer active grille shutters.

As tested by Car and Driver while under full throttle, the interior of the 911 Turbo S Coupe is quieter than the R8 V10 Plus Coupe (82 vs. 91 dB).

Passenger Space Comparison

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The 911 has standard seating for 4 passengers; the R8 can only carry 2.

Cargo Capacity Comparison

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The 911 Cabriolet has a much larger trunk than the R8 Spyder (5.1 vs. 4 cubic feet).

Ergonomics Comparison

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The 911’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The R8 does not have an oil pressure gauge.

To improve rear visibility by keeping the rear window clear, the 911 offers an optional rear wiper. The R8 doesn’t offer a rear wiper.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The 911 offers available headlight washers to keep headlight output high. The R8 doesn’t offer headlight washers.

To help drivers see further while navigating curves, the 911 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The R8 doesn’t offer cornering lights.

Optional air-conditioned seats in the 911 keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The R8 doesn’t offer air-conditioned seats.

On extremely cold Winter days, the 911’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The R8 doesn’t offer a heated steering wheel.

The 911’s standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The R8 doesn’t offer dual zone air conditioning.

To keep a safe, consistent following distance, the 911 offers an optional Adaptive Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The R8 doesn’t offer an adaptive cruise control.

Economic Advantages Comparison

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IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Porsche 911 will be $5343 to $61472 less than for the Audi R8.

Recommendations Comparison

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Car and Driver performed a comparison test in its August 2016 issue and they ranked the Porsche 911 Turbo S Coupe first. They ranked the Audi R8 V10 Plus Coupe third.

The Porsche 911 outsold the Audi R8 by over 16 to one during the 2016 model year.

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