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

€ 138,000

€ 97,800
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 840i Coupé is 6.1 inches longer, 1.6 inches narrower and 2 inches taller than the i8 Coupé.
840i Coupé
i8 Coupé
52.8
74.9
84.1
50.8
76.5
87.3
74.9 in
Width
76.5 in
84.1 in
Width Incl. Mirrors
87.3 in
52.8 in
Height
50.8 in
111.1
190.7
110.2
184.6
190.7 in
Length
184.6 in
111.1 in
Wheelbase
110.2 in
Vehicle Weight
840i Coupé
i8 Coupé
4068 lb
Curb Weight
3549 lb
5027 lb
Gross Vehicle
Weight
Weight
4200 lb

Weight Difference:
518 lb
12.74 %

General
840i Coupé
i8 Coupé
G15
Generation
I12
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded

Permanent all-wheel drive (AWD)
Drivetrain
On-demand four-wheel drive (4WD) with automatic engagement

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
840i Coupé
i8 Coupé
Straight-six gasoline engine with turbocharger
Engine Type
3-cylinder plug-in hybrid gasoline engine with turbocharger
BMW B58
Engine Series
BMW B38
B58-B30
Engine Code
B38-K15

4
Valves
4
6
Cylinders
3
3 L / 147 cu in
Displacement
1.5 L / 73 cu in
335 hp
at 5000 rpm
Power
369 hp
at 5800 rpm
840i Coupé
335 hp
369 hp
i8 Coupé
369 lb‑ft
at 1600 rpm
Max. Torque
420 lb‑ft
at 3700 rpm
840i Coupé
369 lb‑ft
420 lb‑ft
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
213 ft
0.000 sec

840i Coupé
62 mph
62
mph
mph
200 ft
0.000 sec

i8 Coupé
▶ REPLAY
12.14 lb/hp
Weight-to-Power Ratio
9.62 lb/hp
840i Coupé
12.14 lb/hp
9.62 lb/hp
i8 Coupé
Fuel Economy / Emissions
840i Coupé
i8 Coupé
Fuel Economy
31 mpg
combined
131 mpg
840i Coupé
31 mpg
131 mpg
i8 Coupé
25 mpg
city
No data
No data
highway
No data
18 gal
Fuel Tank Capacity
7.9 gal
564 mi
Range
1036 mi
840i Coupé
564 mi
1036 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).
34.1 kWh
840i Coupé
142.1 kWh
34.1 kWh
i8 Coupé
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
323 g/mi (WLTP)
CO2 Emissions
77 g/mi (WLTP)
Practical Convenience
840i Coupé
i8 Coupé
2
Doors
3
4
No. of Seats
4
959 lb
Maximum Payload
650 lb
11.9 cu ft
Trunk Volume
4.4 cu ft






No data
Cargo Volume (Seats Down)
No data