The Comparative Analysis :
Aston Martin DB9 Coupé (06 - 08) vs. BMW 640i Gran Coupé Steptronic (13 - 14)
€ 158,900

€ 79,900

€ 158,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 79,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Aston Martin DB9 Coupé is considerably smaller in every dimension. It's 11.7 inches shorter, 0.7 inches narrower and 4.8 inches lower than the BMW 640i Gran Coupé.
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
50
73.8
81.7
54.8
74.6
81.9
73.8 in
Width
74.6 in
81.7 in
Width Incl. Mirrors
81.9 in
50 in
Height
54.8 in
107.9
185.4
116.9
197.1
185.4 in
Length
197.1 in
107.9 in
Wheelbase
116.9 in
Vehicle Weight
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
3770 lb
Curb Weight
4023 lb
4542 lb
Gross Vehicle
Weight
Weight
5203 lb

Weight Difference:
254 lb
6.31 %

General
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
VH1
Generation
F06
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
V12 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with turbocharger
Engine Series
BMW N55
AM04
Engine Code
N55-B30

4
Valves
4
12
Cylinders
6
5.9 L / 289 cu in
Displacement
3 L / 147 cu in
450 hp
at 6000 rpm
Power
316 hp
at 5800 rpm
Aston Martin DB9 Coupé
450 hp
316 hp
BMW 640i Gran Coupé
420 lb‑ft
at 5000 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
Aston Martin DB9 Coupé
420 lb‑ft
332 lb‑ft
BMW 640i Gran Coupé
Performance
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
186 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
223 ft
0.000 sec

Aston Martin DB9 Coupé
62 mph
62
mph
mph
246 ft
0.000 sec

BMW 640i Gran Coupé
▶ REPLAY
8.38 lb/hp
Weight-to-Power Ratio
12.73 lb/hp
Aston Martin DB9 Coupé
8.38 lb/hp
12.73 lb/hp
BMW 640i Gran Coupé
Fuel Economy / Emissions
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
Fuel Economy
13 mpg
combined
30 mpg
Aston Martin DB9 Coupé
13 mpg
30 mpg
BMW 640i Gran Coupé
9 mpg
city
22 mpg
No data
highway
No data
21.1 gal
Fuel Tank Capacity
18.5 gal
279 mi
Range
557 mi
Aston Martin DB9 Coupé
279 mi
557 mi
BMW 640i Gran Coupé
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).
147.7 kWh
Aston Martin DB9 Coupé
337.2 kWh
147.7 kWh
BMW 640i Gran Coupé
Euro 4
Emission Standard
Euro 6b (NEFZ)
678 g/mi (NEFZ)
CO2 Emissions
291 g/mi (NEFZ)
Practical Convenience
Aston Martin DB9 Coupé
BMW 640i Gran Coupé
3
Doors
4
4
No. of Seats
5
772 lb
Maximum Payload
1179 lb
4.4 cu ft
Trunk Volume
13 cu ft








No data
Cargo Volume (Seats Down)
No data