Son's Automotive Group Compares 2009 Porsche 911 VS 2009 Aston Martin Martin Near Buford, GA

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2009 Porsche 911

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2009 Porsche 911

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2009 Aston Martin Martin

Safety Comparison

For enhanced safety, the front seat shoulder belts of the Porsche 911 Coupe 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 Aston Martin V8 Vantage doesn’t offer height adjustable seat belts.

The V8 Vantage cannot safely hold a rear facing infant safety seat, the only safe, legal way to transport babies from birth to one year old. Because the V8 Vantage has no rear seats, the only unoccupied seat faces the passenger side airbag, which can injure or kill a baby in a rear facing safety seat. The 911’s rear seat is safe for a rear facing infant safety seat and the 911’s passenger side airbag has a weight sensor switch to disable it.

The 911 offers all wheel drive to maximize traction under poor conditions, especially in ice and snow. The V8 Vantage doesn’t offer all wheel drive.

Both the 911 and the V8 Vantage 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 911 comes with a full 4 year/50,000 mile basic warranty, which covers the entire car. The V8 Vantage’s 3 year basic warranty expires 1 year sooner.

The 911 comes with free roadside assistance for 4 years 50,000 miles. Porsche will send help if you run out of gas, need a jump start, lock your keys in or need any assistance on the road. Aston Martin doesn’t give free roadside assistance for the V8 Vantage.

There are almost 17 times as many Porsche dealers as there are Aston Martin dealers, which makes it much easier to get service under the 911’s warranty.

Engine Comparison

The 911 Turbo’s standard 3.6 turbo 6 cyl. produces 60 more horsepower (480 vs. 420) and 114 lbs.-ft. more torque (460 vs. 346) than the V8 Vantage’s 4.7 DOHC V8. The 911 GT2 Coupe’s standard 3.6 turbo 6 cyl. produces 110 more horsepower (530 vs. 420) and 114 lbs.-ft. more torque (460 vs. 346) than the V8 Vantage’s 4.7 DOHC V8.

For more instantaneous acceleration and better engine flexibility in any gear, the 911’s engines produce their peak torque at lower RPM’s than the V8 Vantage:


911 3.6 DOHC 6 cyl.

4400 RPM

911 S 3.8 DOHC 6 cyl.

4400 RPM

911 Turbo 3.6 turbo 6 cyl.

1950 RPM

911 GT2 Coupe 3.6 turbo 6 cyl.

1950 RPM

V8 Vantage 4.7 DOHC V8

5000 RPM

The flat cylinder configuration of the boxer engine in the 911 lowers its center of gravity, enhancing handling stability. The V8 Vantage doesn’t offer a boxer engine configuration.

Fuel Economy and Range Comparison

On the EPA test cycle the 911 GT2 gets better fuel mileage than the V8 Vantage Manual (16 city/23 hwy vs. 12 city/19 hwy).

The 911 GT2’s standard fuel tank has 2.7 gallons more fuel capacity than the V8 Vantage (23.8 vs. 21.1 gallons).

Brakes and Stopping Comparison

For better stopping power the 911 Turbo/GT3/GT2’s front brake rotors are larger than those on the V8 Vantage:

911 Turbo/GT3/GT2

V8 Vantage

Front Rotors

14.96 inches

14 inches

Rear Rotors

13.78 inches

13 inches

The 911 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 V8 Vantage doesn’t offer ceramic brake rotors.

The 911 stops much shorter than the V8 Vantage:


V8 Vantage

80 to 0 MPH

184 feet

212 feet

Road & Track

70 to 0 MPH

145 feet

165 feet

Car and Driver

Tires and Wheels Comparison

The 911’s optional 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) which provides a stiffer sidewall than the V8 Vantage’s 40 series front and 35 series rear tires.

Suspension and Handling Comparison

The 911 has standard front and rear gas-charged shocks for better control over choppy roads. The V8 Vantage’s suspension doesn’t offer gas-charged shocks.

The 911 offers an optional 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 V8 Vantage’s suspension doesn’t offer adjustable shock absorbers.

The 911 GT3 handles at 1.05 G’s, while the V8 Vantage Coupe pulls only .91 G’s of cornering force in a Car and Driver skidpad test.

The 911 GT2 Coupe goes through Road & Track’s slalom 7.3 MPH faster than the V8 Vantage Coupe (75.9 vs. 68.6 MPH).

Chassis Comparison

The Porsche 911 may be more efficient, handle and accelerate better because it weighs about 50 to 550 pounds less than the Aston Martin V8 Vantage.

Passenger Space Comparison

The 911 has standard seating for 4 passengers; the V8 Vantage can only carry 2.

The 911 has 12 cubic feet more passenger volume than the V8 Vantage (64 vs. 52).

Cargo Capacity Comparison

The 911 Coupe has a much larger trunk than the V8 Vantage Coupe (11.7 vs. 10.6 cubic feet).

The 911 Cabriolet has a much larger trunk than the V8 Vantage Roadster (9.9 vs. 5 cubic feet).

Ergonomics Comparison

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 V8 Vantage does not have an oil pressure gauge.

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 V8 Vantage doesn’t offer cornering lights.

The 911’s outside mirrors include heating elements to clear off the mirrors for better visibility. The V8 Vantage doesn’t offer heated side mirrors.

The 911 offers optional automatic dimming rear and side view mirrors which automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The V8 Vantage has an automatic rear view mirror, but its side mirrors don’t dim.

The 911’s optional air conditioned front seats cool the driver and front passenger and help take the sting out of hot leather in Summer. The V8 Vantage doesn’t offer air conditioned front seats.

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