The Comparative Analysis :
Aston Martin DB9 Coupé (06 - 08) vs. Porsche 911 Carrera Coupé 4S (12 - 15)
€ 158,900
€ 112,300
€ 158,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 112,300
ⓘ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 8.6 inches longer, 0.9 inches wider and an inch lower than the Porsche 911 Carrera Coupé 4S.
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
50
73.8
81.7
51
72.9
77.9
73.8 in
Width
72.9 in
81.7 in
Width Incl. Mirrors
77.9 in
50 in
Height
51 in
107.9
185.4
96.5
176.8
185.4 in
Length
176.8 in
107.9 in
Wheelbase
96.5 in
Vehicle Weight
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
3770 lb
Curb Weight
3351 lb
4542 lb
Gross Vehicle
Weight
Weight
4134 lb
Weight Difference:
419 lb
11.11 %
General
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
VH1
Generation
991
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
6-speed manual transmission
Transmission
7-speed manual transmission
Engine
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
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
395 hp
at 7400 rpm
Aston Martin DB9 Coupé
450 hp
395 hp
Porsche 911 Carrera Coupé 4S
420 lb‑ft
at 5000 rpm
Max. Torque
325 lb‑ft
at 5600 rpm
Aston Martin DB9 Coupé
420 lb‑ft
325 lb‑ft
Porsche 911 Carrera Coupé 4S
Performance
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
186 mph
Maximum Speed
186 mph
4.9 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
223 ft
0.000 sec
Aston Martin DB9 Coupé
62 mph
62
mph
mph
207 ft
0.000 sec
Porsche 911 Carrera Coupé 4S
▶ REPLAY
8.38 lb/hp
Weight-to-Power Ratio
8.48 lb/hp
Aston Martin DB9 Coupé
8.38 lb/hp
8.48 lb/hp
Porsche 911 Carrera Coupé 4S
Fuel Economy / Emissions
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
Fuel Economy
13 mpg
combined
24 mpg
Aston Martin DB9 Coupé
13 mpg
24 mpg
Porsche 911 Carrera Coupé 4S
9 mpg
city
17 mpg
No data
highway
31 mpg
21.1 gal
Fuel Tank Capacity
18 gal
279 mi
Range
427 mi
Aston Martin DB9 Coupé
279 mi
427 mi
Porsche 911 Carrera Coupé 4S
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).
187.5 kWh
Aston Martin DB9 Coupé
337.2 kWh
187.5 kWh
Porsche 911 Carrera Coupé 4S
Euro 4
Emission Standard
Euro 5 / Euro 6
678 g/mi (NEFZ)
CO2 Emissions
377 g/mi (NEFZ)
Practical Convenience
Aston Martin DB9 Coupé
Porsche 911 Carrera Coupé 4S
3
Doors
2
4
No. of Seats
4
772 lb
Maximum Payload
783 lb
4.4 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data
