The Comparative Analysis :
BMW 840i Coupé xDrive Steptronic (19 - ..) vs. BMW i8 Coupé (14 - 18)
€ 97,800

€ 134,000

€ 97,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 134,000
ⓘ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 840i Coupé is 15.4 cm longer, 4 cm narrower and 4.8 cm taller than the i8 Coupé.
840i Coupé
i8 Coupé
1341
1902
2137
1293
1942
2218
1902 mm
Width
1942 mm
2137 mm
Width Incl. Mirrors
2218 mm
1341 mm
Height
1293 mm
2822
4843
2800
4689
4843 mm
Length
4689 mm
2822 mm
Wheelbase
2800 mm
Vehicle Weight
840i Coupé
i8 Coupé
1845 kg
Kerb Weight
1560 kg
2280 kg
Gross Vehicle
Weight
Weight
1855 kg

Weight Difference:
285 kg
15.45 %

General
840i Coupé
i8 Coupé
G15
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
840i Coupé
i8 Coupé
Straight-six petrol engine with turbocharger
Engine Type
3-cylinder plug-in hybrid petrol engine with turbocharger
BMW B58
Engine Series
BMW B38
B58-B30
Engine Code
B38-K15

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

840i Coupé
62 mph
62
mph
mph
61 m
0.000 sec

i8 Coupé
▶ REPLAY
5.51 kg/bhp
Weight-to-Power Ratio
4.37 kg/bhp
840i Coupé
5.51 kg/bhp
4.37 kg/bhp
i8 Coupé
Fuel Economy / Emissions
840i Coupé
i8 Coupé
Fuel Economy
38 mpg
combined
135 mpg
840i Coupé
38 mpg
135 mpg
i8 Coupé
30 mpg
city
No data
No data
motorway
No data
68 L
Fuel Tank Capacity
30 L
564 mi
Range
888 mi
840i Coupé
564 mi
888 mi
i8 Coupé
Environmental Impact
142.1 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).
39.8 kWh
840i Coupé
142.1 kWh
39.8 kWh
i8 Coupé
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
201 g/km (WLTP)
CO2 Emissions
49 g/km (NEFZ)
Practical Convenience
840i Coupé
i8 Coupé
2
Doors
3
4
No. of Seats
4
435 kg
Maximum Payload
295 kg
420 L
Boot Capacity
154 L






No data
Boot Capacity (Seats Down)
No data