The Comparative Analysis :
BMW 840i Convertible xDrive Steptronic (19 - ..) vs. Aston Martin DB9 Volante Tiptronic (04 - 06)
€ 105,800

€ 161,200

€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 161,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 840i Cabrio is considerably bigger in every dimension. It's 5.2 inches longer, 1.1 inches wider and 2.7 inches taller than the Aston Martin DB9 Volante.
BMW 840i Cabrio
Aston Martin DB9 Volante
52.7
74.9
84.1
50
73.8
81.7
74.9 in
Width
73.8 in
84.1 in
Width Incl. Mirrors
81.7 in
52.7 in
Height
50 in
111.1
190.7
107.9
185.4
190.7 in
Length
185.4 in
111.1 in
Wheelbase
107.9 in
Vehicle Weight
BMW 840i Cabrio
Aston Martin DB9 Volante
4310 lb
Curb Weight
3968 lb
5291 lb
Gross Vehicle
Weight
Weight
No data

Weight Difference:
342 lb
7.93 %

General
BMW 840i Cabrio
Aston Martin DB9 Volante
G14
Generation
VH1
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW 840i Cabrio
Aston Martin DB9 Volante
Straight-six gasoline engine with turbocharger
Engine Type
V12 gasoline engine (naturally aspirated engine)
BMW B58
Engine Series
B58-B30
Engine Code
AM04

4
Valves
4
6
Cylinders
12
3 L / 147 cu in
Displacement
5.9 L / 289 cu in
335 hp
at 5000 rpm
Power
444 hp
at 6000 rpm
BMW 840i Cabrio
335 hp
444 hp
Aston Martin DB9 Volante
369 lb‑ft
at 1600 rpm
Max. Torque
420 lb‑ft
at 5000 rpm
BMW 840i Cabrio
369 lb‑ft
420 lb‑ft
Aston Martin DB9 Volante
Performance
BMW 840i Cabrio
Aston Martin DB9 Volante
155 mph
Maximum Speed
186 mph
4.9 sec
Acceleration 0 to 62 mph
5.1 sec
62 mph
62
mph
mph
223 ft
0.000 sec

BMW 840i Cabrio
62 mph
62
mph
mph
233 ft
0.000 sec

Aston Martin DB9 Volante
▶ REPLAY
12.87 lb/hp
Weight-to-Power Ratio
8.94 lb/hp
BMW 840i Cabrio
12.87 lb/hp
8.94 lb/hp
Aston Martin DB9 Volante
Fuel Economy / Emissions
BMW 840i Cabrio
Aston Martin DB9 Volante
Fuel Economy
31 mpg
combined
14 mpg
BMW 840i Cabrio
31 mpg
14 mpg
Aston Martin DB9 Volante
24 mpg
city
9 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
21.1 gal
549 mi
Range
301 mi
BMW 840i Cabrio
549 mi
301 mi
Aston Martin DB9 Volante
Environmental Impact
145.8 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).
312.5 kWh
BMW 840i Cabrio
145.8 kWh
312.5 kWh
Aston Martin DB9 Volante
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 3
330 g/mi (WLTP)
CO2 Emissions
634 g/mi (NEFZ)
Practical Convenience
BMW 840i Cabrio
Aston Martin DB9 Volante
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
No data
9.9 cu ft
Trunk Volume
No data




No data
Cargo Volume (Seats Down)
No data