The Comparative Analysis :
Porsche 911 GT3 (09 - 11) vs. Aston Martin DB9 Coupé (08 - 12)
€ 121,800
€ 168,300
€ 121,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 168,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 911 GT3 is considerably smaller in every dimension. It's 9.6 inches shorter, 2.6 inches narrower and 1.5 inches lower than the Aston Martin DB9 Coupé.
Porsche 911 GT3
Aston Martin DB9 Coupé
50.4
71.2
79.1
51.9
73.8
81.7
71.2 in
Width
73.8 in
79.1 in
Width Incl. Mirrors
81.7 in
50.4 in
Height
51.9 in
92.7
175.8
107.9
185.4
175.8 in
Length
185.4 in
92.7 in
Wheelbase
107.9 in
Vehicle Weight
Porsche 911 GT3
Aston Martin DB9 Coupé
3241 lb
Curb Weight
3770 lb
3704 lb
Gross Vehicle
Weight
Weight
4542 lb
Weight Difference:
529 lb
14.03 %
General
Porsche 911 GT3
Aston Martin DB9 Coupé
997
Generation
VH1
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
Porsche 911 GT3
Aston Martin DB9 Coupé
6-cylinder boxer gasoline engine (naturally aspirated engine)
Engine Type
V12 gasoline engine (naturally aspirated engine)
Engine Code
AM09
4
Valves
4
6
Cylinders
12
3.8 L / 186 cu in
Displacement
5.9 L / 289 cu in
429 hp
at 7600 rpm
Power
470 hp
at 6000 rpm
Porsche 911 GT3
429 hp
470 hp
Aston Martin DB9 Coupé
317 lb‑ft
at 6250 rpm
Max. Torque
443 lb‑ft
at 5000 rpm
Porsche 911 GT3
317 lb‑ft
443 lb‑ft
Aston Martin DB9 Coupé
Performance
Porsche 911 GT3
Aston Martin DB9 Coupé
194 mph
Maximum Speed
190 mph
4.1 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
187 ft
0.000 sec
Porsche 911 GT3
62 mph
62
mph
mph
223 ft
0.000 sec
Aston Martin DB9 Coupé
▶ REPLAY
7.55 lb/hp
Weight-to-Power Ratio
8.02 lb/hp
Porsche 911 GT3
7.55 lb/hp
8.02 lb/hp
Aston Martin DB9 Coupé
Fuel Economy / Emissions
Porsche 911 GT3
Aston Martin DB9 Coupé
Fuel Economy
18 mpg
combined
14 mpg
Porsche 911 GT3
18 mpg
14 mpg
Aston Martin DB9 Coupé
12 mpg
city
10 mpg
26 mpg
highway
No data
17.7 gal
Fuel Tank Capacity
22.5 gal
325 mi
Range
322 mi
Porsche 911 GT3
325 mi
322 mi
Aston Martin DB9 Coupé
Environmental Impact
242.5 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
310.8 kWh
Porsche 911 GT3
242.5 kWh
310.8 kWh
Aston Martin DB9 Coupé
Euro 5
Emission Standard
Euro 5
488 g/mi (NEFZ)
CO2 Emissions
626 g/mi (NEFZ)
Practical Convenience
Porsche 911 GT3
Aston Martin DB9 Coupé
2
Doors
3
4
No. of Seats
4
463 lb
Maximum Payload
772 lb
3 cu ft
Trunk Volume
4.4 cu ft
No data
Cargo Volume (Seats Down)
No data
