The Comparative Analysis :
Aston Martin DB9 Coupé (06 - 08) vs. Porsche 911 GT3 (09 - 11)
€ 158,900
€ 121,800
€ 158,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 121,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ considerably. The Aston Martin DB9 Coupé is 9.6 inches longer, 2.6 inches wider and 0.4 inches lower than the Porsche 911 GT3.
Aston Martin DB9 Coupé
Porsche 911 GT3
50
73.8
81.7
50.4
71.2
79.1
73.8 in
Width
71.2 in
81.7 in
Width Incl. Mirrors
79.1 in
50 in
Height
50.4 in
107.9
185.4
92.7
175.8
185.4 in
Length
175.8 in
107.9 in
Wheelbase
92.7 in
Vehicle Weight
Aston Martin DB9 Coupé
Porsche 911 GT3
3770 lb
Curb Weight
3241 lb
4542 lb
Gross Vehicle
Weight
Weight
3704 lb
Weight Difference:
529 lb
14.03 %
General
Aston Martin DB9 Coupé
Porsche 911 GT3
VH1
Generation
997
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
Aston Martin DB9 Coupé
Porsche 911 GT3
V12 gasoline engine (naturally aspirated engine)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
AM04
Engine Code
4
Valves
4
12
Cylinders
6
5.9 L / 289 cu in
Displacement
3.8 L / 186 cu in
450 hp
at 6000 rpm
Power
429 hp
at 7600 rpm
Aston Martin DB9 Coupé
450 hp
429 hp
Porsche 911 GT3
420 lb‑ft
at 5000 rpm
Max. Torque
317 lb‑ft
at 6250 rpm
Aston Martin DB9 Coupé
420 lb‑ft
317 lb‑ft
Porsche 911 GT3
Performance
Aston Martin DB9 Coupé
Porsche 911 GT3
186 mph
Maximum Speed
194 mph
4.9 sec
Acceleration 0 to 62 mph
4.1 sec
62 mph
62
mph
mph
223 ft
0.000 sec
Aston Martin DB9 Coupé
62 mph
62
mph
mph
187 ft
0.000 sec
Porsche 911 GT3
▶ REPLAY
8.38 lb/hp
Weight-to-Power Ratio
7.55 lb/hp
Aston Martin DB9 Coupé
8.38 lb/hp
7.55 lb/hp
Porsche 911 GT3
Fuel Economy / Emissions
Aston Martin DB9 Coupé
Porsche 911 GT3
Fuel Economy
13 mpg
combined
18 mpg
Aston Martin DB9 Coupé
13 mpg
18 mpg
Porsche 911 GT3
9 mpg
city
12 mpg
No data
highway
26 mpg
21.1 gal
Fuel Tank Capacity
17.7 gal
279 mi
Range
325 mi
Aston Martin DB9 Coupé
279 mi
325 mi
Porsche 911 GT3
Environmental Impact
337.2 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).
242.5 kWh
Aston Martin DB9 Coupé
337.2 kWh
242.5 kWh
Porsche 911 GT3
Euro 4
Emission Standard
Euro 5
678 g/mi (NEFZ)
CO2 Emissions
488 g/mi (NEFZ)
Practical Convenience
Aston Martin DB9 Coupé
Porsche 911 GT3
3
Doors
2
4
No. of Seats
4
772 lb
Maximum Payload
463 lb
4.4 cu ft
Trunk Volume
3 cu ft
No data
Cargo Volume (Seats Down)
No data
