The Comparative Analysis :
BMW 640i Coupé xDrive Steptronic (13 - 14) vs. BMW i8 Coupé (18 - ..)
€ 78,700
€ 138,000
€ 78,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 138,000
ⓘ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 640i Coupé is 20.5 cm longer, 4.8 cm narrower and 7.8 cm taller than the i8 Coupé.
640i Coupé
i8 Coupé
1369
1894
2081
1291
1942
2218
1894 mm
Width
1942 mm
2081 mm
Width Incl. Mirrors
2218 mm
1369 mm
Height
1291 mm
2855
4894
2800
4689
4894 mm
Length
4689 mm
2855 mm
Wheelbase
2800 mm
Vehicle Weight
640i Coupé
i8 Coupé
1840 kg
Kerb Weight
1610 kg
2255 kg
Gross Vehicle
Weight
Weight
1905 kg
Weight Difference:
230 kg
12.5 %
General
640i Coupé
i8 Coupé
F13
Generation
I12
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
On-demand four-wheel drive with automatic engagement
8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
640i Coupé
i8 Coupé
Straight-six petrol engine with turbocharger
Engine Type
3-cylinder plug-in hybrid petrol engine with turbocharger
BMW N55
Engine Series
BMW B38
N55-B30
Engine Code
B38-K15
4
Valves
4
6
Cylinders
3
2979 CC
Engine Capacity
1499 CC
316 bhp
at 5800 rpm
Power
369 bhp
at 5800 rpm
640i Coupé
316 bhp
369 bhp
i8 Coupé
450 NM
at 1300 rpm
Max. Torque
570 NM
at 3700 rpm
640i Coupé
450 NM
570 NM
i8 Coupé
Performance
640i Coupé
i8 Coupé
155 mph
Maximum Speed
155 mph
5.2 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
72 m
0.000 sec
640i Coupé
62 mph
62
mph
mph
61 m
0.000 sec
i8 Coupé
▶ REPLAY
5.82 kg/bhp
Weight-to-Power Ratio
4.36 kg/bhp
640i Coupé
5.82 kg/bhp
4.36 kg/bhp
i8 Coupé
Fuel Economy / Emissions
640i Coupé
i8 Coupé
Fuel Economy
35 mpg
combined
157 mpg
640i Coupé
35 mpg
157 mpg
i8 Coupé
25 mpg
city
No data
No data
motorway
No data
70 L
Fuel Tank Capacity
30 L
537 mi
Range
1036 mi
640i Coupé
537 mi
1036 mi
i8 Coupé
Environmental Impact
153.5 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).
34.1 kWh
640i Coupé
153.5 kWh
34.1 kWh
i8 Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
188 g/km (NEFZ)
CO2 Emissions
48 g/km (WLTP)
Practical Convenience
640i Coupé
i8 Coupé
2
Doors
3
4
No. of Seats
4
415 kg
Maximum Payload
295 kg
460 L
Boot Capacity
154 L
No data
Boot Capacity (Seats Down)
No data
