The Comparative Analysis :
BMW 630i Convertible (07 - 10) vs. BMW 840i Convertible xDrive Steptronic (19 - ..)
€ 78,900

€ 105,800

€ 78,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 105,800
ⓘ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 630i Cabrio is 0.9 inches shorter, 1.9 inches narrower and 1.4 inches taller than the 840i Cabrio.
630i Cabrio
840i Cabrio
54.1
73
80.2
52.7
74.9
84.1
73 in
Width
74.9 in
80.2 in
Width Incl. Mirrors
84.1 in
54.1 in
Height
52.7 in
109.4
189.8
111.1
190.7
189.8 in
Length
190.7 in
109.4 in
Wheelbase
111.1 in
Vehicle Weight
630i Cabrio
840i Cabrio
4001 lb
Curb Weight
4310 lb
4718 lb
Gross Vehicle
Weight
Weight
5291 lb

Weight Difference:
309 lb
7.17 %

General
630i Cabrio
840i Cabrio
E64
Generation
G14
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

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


4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
268 hp
at 6700 rpm
Power
335 hp
at 5000 rpm
630i Cabrio
268 hp
335 hp
840i Cabrio
236 lb‑ft
at 2750 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
630i Cabrio
236 lb‑ft
369 lb‑ft
840i Cabrio
Performance
630i Cabrio
840i Cabrio
155 mph
Maximum Speed
155 mph
6.7 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
305 ft
0.000 sec

630i Cabrio
62 mph
62
mph
mph
223 ft
0.000 sec

840i Cabrio
▶ REPLAY
14.93 lb/hp
Weight-to-Power Ratio
12.87 lb/hp
630i Cabrio
14.93 lb/hp
12.87 lb/hp
840i Cabrio
Fuel Economy / Emissions
630i Cabrio
840i Cabrio
Fuel Economy
28 mpg
combined
31 mpg
630i Cabrio
28 mpg
31 mpg
840i Cabrio
20 mpg
city
24 mpg
No data
highway
No data
18.5 gal
Fuel Tank Capacity
18 gal
524 mi
Range
549 mi
630i Cabrio
524 mi
549 mi
840i Cabrio
Environmental Impact
157.2 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).
145.8 kWh
630i Cabrio
157.2 kWh
145.8 kWh
840i Cabrio
Euro 4
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
319 g/mi (NEFZ)
CO2 Emissions
330 g/mi (WLTP)
Practical Convenience
630i Cabrio
840i Cabrio
2
Doors
2
4
No. of Seats
4
717 lb
Maximum Payload
981 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data