The Comparative Analysis :
Aston Martin DB9 GT Coupé Touchtronic (15 - 16) vs. Porsche 911 Carrera Coupé (08 - 11)
€ 187,000
€ 85,500
€ 187,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 85,500
ⓘ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 GT Coupé is 11.2 inches longer, 2.6 inches wider and 1.1 inches lower than the Porsche 911 Carrera Coupé.
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
50.5
73.8
81.7
51.6
71.2
79.1
73.8 in
Width
71.2 in
81.7 in
Width Incl. Mirrors
79.1 in
50.5 in
Height
51.6 in
107.9
185.8
92.5
174.6
185.8 in
Length
174.6 in
107.9 in
Wheelbase
92.5 in
Vehicle Weight
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
3935 lb
Curb Weight
3285 lb
4542 lb
Gross Vehicle
Weight
Weight
4012 lb
Weight Difference:
650 lb
16.52 %
General
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
VH1
Generation
997
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
V12 gasoline engine (naturally aspirated engine)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
AM11
Engine Code
4
Valves
4
12
Cylinders
6
5.9 L / 289 cu in
Displacement
3.6 L / 176 cu in
540 hp
at 6750 rpm
Power
340 hp
at 6500 rpm
Aston Martin DB9 GT Coupé
540 hp
340 hp
Porsche 911 Carrera Coupé
457 lb‑ft
at 5500 rpm
Max. Torque
288 lb‑ft
at 4400 rpm
Aston Martin DB9 GT Coupé
457 lb‑ft
288 lb‑ft
Porsche 911 Carrera Coupé
Performance
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
183 mph
Maximum Speed
180 mph
4.5 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
207 ft
0.000 sec
Aston Martin DB9 GT Coupé
62 mph
62
mph
mph
223 ft
0.000 sec
Porsche 911 Carrera Coupé
▶ REPLAY
7.29 lb/hp
Weight-to-Power Ratio
9.66 lb/hp
Aston Martin DB9 GT Coupé
7.29 lb/hp
9.66 lb/hp
Porsche 911 Carrera Coupé
Fuel Economy / Emissions
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
Fuel Economy
16 mpg
combined
23 mpg
Aston Martin DB9 GT Coupé
16 mpg
23 mpg
Porsche 911 Carrera Coupé
11 mpg
city
15 mpg
No data
highway
33 mpg
20.6 gal
Fuel Tank Capacity
16.9 gal
339 mi
Range
386 mi
Aston Martin DB9 GT Coupé
339 mi
386 mi
Porsche 911 Carrera Coupé
Environmental Impact
270.9 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).
195.2 kWh
Aston Martin DB9 GT Coupé
270.9 kWh
195.2 kWh
Porsche 911 Carrera Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 5
536 g/mi (NEFZ)
CO2 Emissions
389 g/mi (NEFZ)
Practical Convenience
Aston Martin DB9 GT Coupé
Porsche 911 Carrera Coupé
3
Doors
2
4
No. of Seats
4
606 lb
Maximum Payload
728 lb
4.4 cu ft
Trunk Volume
3.8 cu ft
No data
Cargo Volume (Seats Down)
No data
