The Comparative Analysis :
BMW i8 Coupé (18 - ..) vs. BMW 840i Gran Coupé xDrive Steptronic (19 - ..)
€ 138,000

€ 94,800

€ 138,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 94,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ significantly. The i8 Coupé is 39.3 cm shorter, 1 cm wider and 11.6 cm lower than the 840i Gran Coupé.
i8 Coupé
840i Gran Coupé
1291
1942
2218
1407
1932
2137
1942 mm
Width
1932 mm
2218 mm
Width Incl. Mirrors
2137 mm
1291 mm
Height
1407 mm
2800
4689
3023
5082
4689 mm
Length
5082 mm
2800 mm
Wheelbase
3023 mm
Vehicle Weight
i8 Coupé
840i Gran Coupé
1610 kg
Kerb Weight
1930 kg
1905 kg
Gross Vehicle
Weight
Weight
2480 kg

Weight Difference:
320 kg
16.58 %

General
i8 Coupé
840i Gran Coupé
I12
Generation
G16
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
840i Gran Coupé
3-cylinder plug-in hybrid petrol engine with turbocharger
Engine Type
Straight-six petrol engine with turbocharger
BMW B38
Engine Series
BMW B58
B38-K15
Engine Code
B58-B30

4
Valves
4
3
Cylinders
6
1499 CC
Engine Capacity
2998 CC
369 bhp
at 5800 rpm
Power
335 bhp
at 5000 rpm
i8 Coupé
369 bhp
335 bhp
840i Gran Coupé
570 NM
at 3700 rpm
Max. Torque
500 NM
at 1600 rpm
i8 Coupé
570 NM
500 NM
840i Gran Coupé
Performance
i8 Coupé
840i Gran Coupé
155 mph
Maximum Speed
155 mph
4.4 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
61 m
0.000 sec

i8 Coupé
62 mph
62
mph
mph
68 m
0.000 sec

840i Gran Coupé
▶ REPLAY
4.36 kg/bhp
Weight-to-Power Ratio
5.76 kg/bhp
i8 Coupé
4.36 kg/bhp
5.76 kg/bhp
840i Gran Coupé
Fuel Economy / Emissions
i8 Coupé
840i Gran Coupé
Fuel Economy
157 mpg
combined
38 mpg
i8 Coupé
157 mpg
38 mpg
840i Gran Coupé
No data
city
30 mpg
No data
motorway
No data
30 L
Fuel Tank Capacity
68 L
1036 mi
Range
564 mi
i8 Coupé
1036 mi
564 mi
840i Gran 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).
142.1 kWh
i8 Coupé
34.1 kWh
142.1 kWh
840i Gran Coupé
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
48 g/km (WLTP)
CO2 Emissions
203 g/km (WLTP)
Practical Convenience
i8 Coupé
840i Gran Coupé
3
Doors
4
4
No. of Seats
5
295 kg
Maximum Payload
550 kg
154 L
Boot Capacity
440 L






No data
Boot Capacity (Seats Down)
No data