The Comparative Analysis :
BMW 840i Convertible xDrive Steptronic (19 - ..) vs. BMW 630i Convertible (07 - 10)
€ 105,800
€ 78,900
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 78,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The 840i Cabrio is 0.9 inches longer, 1.9 inches wider and 1.4 inches lower than the 630i Cabrio.
840i Cabrio
630i Cabrio
52.7
74.9
84.1
54.1
73
80.2
74.9 in
Width
73 in
84.1 in
Width Incl. Mirrors
80.2 in
52.7 in
Height
54.1 in
111.1
190.7
109.4
189.8
190.7 in
Length
189.8 in
111.1 in
Wheelbase
109.4 in
Vehicle Weight
840i Cabrio
630i Cabrio
4310 lb
Curb Weight
4001 lb
5291 lb
Gross Vehicle
Weight
Weight
4718 lb
Weight Difference:
309 lb
7.17 %
General
840i Cabrio
630i Cabrio
G14
Generation
E64
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
6-speed manual transmission
Engine
840i Cabrio
630i Cabrio
Straight-six gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
BMW B58
Engine Series
BMW N53
B58-B30
Engine Code
N53-B30


4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
335 hp
at 5000 rpm
Power
268 hp
at 6700 rpm
840i Cabrio
335 hp
268 hp
630i Cabrio
369 lb‑ft
at 1600 rpm
Max. Torque
236 lb‑ft
at 2750 rpm
840i Cabrio
369 lb‑ft
236 lb‑ft
630i Cabrio
Performance
840i Cabrio
630i Cabrio
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
6.7 sec
62 mph
62
mph
mph
223 ft
0.000 sec
840i Cabrio
62 mph
62
mph
mph
305 ft
0.000 sec
630i Cabrio
▶ REPLAY
12.87 lb/hp
Weight-to-Power Ratio
14.93 lb/hp
840i Cabrio
12.87 lb/hp
14.93 lb/hp
630i Cabrio
Fuel Economy / Emissions
840i Cabrio
630i Cabrio
Fuel Economy
31 mpg
combined
28 mpg
840i Cabrio
31 mpg
28 mpg
630i Cabrio
24 mpg
city
20 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
18.5 gal
549 mi
Range
524 mi
840i Cabrio
549 mi
524 mi
630i Cabrio
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).
157.2 kWh
840i Cabrio
145.8 kWh
157.2 kWh
630i Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
330 g/mi (WLTP)
CO2 Emissions
319 g/mi (NEFZ)
Practical Convenience
840i Cabrio
630i Cabrio
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
717 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data




















