The Comparative Analysis :
BMW i8 Coupé (14 - 18) vs. BMW 640i Gran Coupé xDrive Steptronic (13 - 14)
€ 134,000
€ 83,300
€ 134,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 83,300
ⓘ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 31.8 cm shorter, 4.8 cm wider and 9.9 cm lower than the 640i Gran Coupé.
i8 Coupé
640i Gran Coupé
1293
1942
2218
1392
1894
2081
1942 mm
Width
1894 mm
2218 mm
Width Incl. Mirrors
2081 mm
1293 mm
Height
1392 mm
2800
4689
2968
5007
4689 mm
Length
5007 mm
2800 mm
Wheelbase
2968 mm
Vehicle Weight
i8 Coupé
640i Gran Coupé
1560 kg
Kerb Weight
1900 kg
1855 kg
Gross Vehicle
Weight
Weight
2430 kg
Weight Difference:
340 kg
17.89 %
General
i8 Coupé
640i Gran Coupé
I12
Generation
F06
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
On-demand four-wheel drive with automatic engagement
Drive
Permanent all-wheel drive
6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
i8 Coupé
640i Gran 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
357 bhp
at 5800 rpm
Power
316 bhp
at 5800 rpm
i8 Coupé
357 bhp
316 bhp
640i Gran Coupé
570 NM
at 3700 rpm
Max. Torque
450 NM
at 1300 rpm
i8 Coupé
570 NM
450 NM
640i Gran Coupé
Performance
i8 Coupé
640i Gran 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 Gran Coupé
▶ REPLAY
4.37 kg/bhp
Weight-to-Power Ratio
6.01 kg/bhp
i8 Coupé
4.37 kg/bhp
6.01 kg/bhp
640i Gran Coupé
Fuel Economy / Emissions
i8 Coupé
640i Gran Coupé
Fuel Economy
135 mpg
combined
35 mpg
i8 Coupé
135 mpg
35 mpg
640i Gran Coupé
No data
city
25 mpg
No data
motorway
No data
30 L
Fuel Tank Capacity
70 L
888 mi
Range
537 mi
i8 Coupé
888 mi
537 mi
640i Gran Coupé
Environmental Impact
39.8 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).
153.5 kWh
i8 Coupé
39.8 kWh
153.5 kWh
640i Gran Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
49 g/km (NEFZ)
CO2 Emissions
189 g/km (NEFZ)
Practical Convenience
i8 Coupé
640i Gran Coupé
3
Doors
4
4
No. of Seats
5
295 kg
Maximum Payload
530 kg
154 L
Boot Capacity
460 L
No data
Boot Capacity (Seats Down)
No data
