Certified Benz & Beemer Compares 2015 Aston Martin DB9 VS 2015 Porsche 911 Near Phoenix, AZ

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2015 Aston Martin DB9

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VS

2015 Porsche 911

Safety Comparison

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Both the DB9 and the 911 have standard driver and passenger frontal airbags, front side-impact airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Warranty Comparison

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The DB9 comes with a full 3 year/unlimited mile basic warranty, which covers the entire car and includes free 24 hour roadside assistance. The 911’s 50,000 mile basic warranty expires sooner.

Engine Comparison

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The DB9’s 5.9 DOHC V12 produces 160 more horsepower (510 vs. 350) and 170 lbs.-ft. more torque (457 vs. 287) than the 911’s standard 3.4 DOHC 6 cyl. The DB9’s 5.9 DOHC V12 produces 110 more horsepower (510 vs. 400) and 132 lbs.-ft. more torque (457 vs. 325) than the 911 S’ standard 3.8 DOHC 6 cyl. The DB9’s 5.9 DOHC V12 produces 80 more horsepower (510 vs. 430) and 132 lbs.-ft. more torque (457 vs. 325) than the 911 GTS’ standard 3.8 DOHC 6 cyl.

Fuel Economy and Range Comparison

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The DB9 has 3.7 gallons more fuel capacity than the 911 RWD/Turbo/GT3’s standard fuel tank (20.6 vs. 16.9 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

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For better stopping power the DB9’s standard brake rotors are larger than those on the 911:

DB9

911

Front Rotors

15.7 inches

13 inches

Rear Rotors

14.2 inches

13 inches

Tires and Wheels Comparison

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For better traction, the DB9 has larger tires than the 911 (F:245/35R20 & R:295/30R20 vs. F:235/40R19 & R:285/35R19).

The DB9’s 245/35R20 front and 295/30R20 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 front and 35 series rear tires.

For better ride, handling and brake cooling the DB9 has standard 20-inch wheels. Smaller 19-inch wheels are standard on the 911.

Suspension and Handling Comparison

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For a smoother ride and more stable handling, the DB9’s wheelbase is 11.4 inches longer than on the 911 (107.9 inches vs. 96.5 inches). The DB9’s wheelbase is 11.2 inches longer than on the 911 GT3 Coupe (107.9 feet vs. 96.7 inches).

For better handling and stability, the track (width between the wheels) on the DB9 is 1.5 inches wider in the front and 1 inch wider in the rear than the average track on the 911.

The DB9’s front to rear weight distribution is more even (50.6% to 49.4%) than the 911’s (39.3% to 60.7%). This gives the DB9 more stable handling and braking.

Passenger Space Comparison

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The DB9 Coupe has 8.5 inches more front shoulder room, .1 inches more rear headroom and .5 inches more rear shoulder room than the 911 Coupe.

Cargo Capacity Comparison

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The DB9 Coupe has a larger trunk than the 911 Coupe with its rear seat up (6.1 vs. 5.1 cubic feet).

Ergonomics Comparison

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Unlike the driver-only memory system optional at extra cost in the 911, the DB9 has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

If the windows are left down on the DB9 the driver can raise them all using the keyless remote; on a hot day the driver can lower the windows. The driver of the 911 can only operate the windows from inside the vehicle, with the ignition on.

The DB9 has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable. The 911 doesn’t offer a rear seat center armrest.

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