The Comparative Analysis :
BMW i8 Coupé (18 - ..) vs. BMW 640i Coupé Steptronic (15 - 17)
€ 138,000
€ 81,900
€ 138,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 81,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ considerably. The i8 Coupé is 20.5 cm shorter, 4.8 cm wider and 7.8 cm lower than the 640i Coupé.
i8 Coupé
640i Coupé
1291
1942
2218
1369
1894
2081
1942 mm
Width
1894 mm
2218 mm
Width Incl. Mirrors
2081 mm
1291 mm
Height
1369 mm
2800
4689
2855
4894
4689 mm
Length
4894 mm
2800 mm
Wheelbase
2855 mm
Vehicle Weight
i8 Coupé
640i Coupé
1610 kg
Kerb Weight
1760 kg
1905 kg
Gross Vehicle
Weight
Weight
2210 kg
Weight Difference:
150 kg
8.52 %
General
i8 Coupé
640i Coupé
I12
Generation
F13
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
On-demand four-wheel drive with automatic engagement
Drive
Rear-wheel drive
6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
i8 Coupé
640i Coupé
3-cylinder plug-in hybrid petrol engine with turbocharger
Engine Type
Straight-six petrol engine with turbocharger
BMW B38
Engine Series
BMW N55
B38-K15
Engine Code
N55-B30
4
Valves
4
3
Cylinders
6
1499 CC
Engine Capacity
2979 CC
369 bhp
at 5800 rpm
Power
316 bhp
at 5800 rpm
i8 Coupé
369 bhp
316 bhp
640i Coupé
570 NM
at 3700 rpm
Max. Torque
450 NM
at 1300 rpm
i8 Coupé
570 NM
450 NM
640i Coupé
Performance
i8 Coupé
640i Coupé
155 mph
Maximum Speed
155 mph
4.4 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph
62
mph
mph
61 m
0.000 sec
i8 Coupé
62 mph
62
mph
mph
74 m
0.000 sec
640i Coupé
▶ REPLAY
4.36 kg/bhp
Weight-to-Power Ratio
5.57 kg/bhp
i8 Coupé
4.36 kg/bhp
5.57 kg/bhp
640i Coupé
Fuel Economy / Emissions
i8 Coupé
640i Coupé
Fuel Economy
157 mpg
combined
37 mpg
i8 Coupé
157 mpg
37 mpg
640i Coupé
No data
city
27 mpg
No data
motorway
No data
30 L
Fuel Tank Capacity
70 L
1036 mi
Range
572 mi
i8 Coupé
1036 mi
572 mi
640i Coupé
Environmental Impact
34.1 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).
144 kWh
i8 Coupé
34.1 kWh
144 kWh
640i Coupé
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 6b (NEFZ)
48 g/km (WLTP)
CO2 Emissions
177 g/km (NEFZ)
Practical Convenience
i8 Coupé
640i Coupé
3
Doors
2
4
No. of Seats
4
295 kg
Maximum Payload
450 kg
154 L
Boot Capacity
460 L
No data
Boot Capacity (Seats Down)
No data
