The Comparative Analysis :
BMW i8 Coupé (18 - ..) vs. BMW 640d Coupé xDrive Steptronic (15 - 17)
€ 138,000
€ 89,500
€ 138,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 89,500
ⓘ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 8.1 inches shorter, 1.9 inches wider and 3.1 inches lower than the 640d Coupé.
i8 Coupé
640d Coupé
50.8
76.5
87.3
53.9
74.6
81.9
76.5 in
Width
74.6 in
87.3 in
Width Incl. Mirrors
81.9 in
50.8 in
Height
53.9 in
110.2
184.6
112.4
192.7
184.6 in
Length
192.7 in
110.2 in
Wheelbase
112.4 in
Vehicle Weight
i8 Coupé
640d Coupé
3549 lb
Curb Weight
4123 lb
4200 lb
Gross Vehicle
Weight
Weight
5104 lb
Weight Difference:
573 lb
13.9 %
General
i8 Coupé
640d Coupé
I12
Generation
F13
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Diesel

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

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
i8 Coupé
640d Coupé
3-cylinder plug-in hybrid gasoline engine with turbocharger
Engine Type
Straight-six diesel engine with two turbochargers (biturbo)
BMW B38
Engine Series
BMW N57
B38-K15
Engine Code
N57-D30

4
Valves
4
3
Cylinders
6
1.5 L / 73 cu in
Displacement
3 L / 147 cu in
369 hp
at 5800 rpm
Power
309 hp
at 4400 rpm
i8 Coupé
369 hp
309 hp
640d Coupé
420 lb‑ft
at 3700 rpm
Max. Torque
465 lb‑ft
at 1500 rpm
i8 Coupé
420 lb‑ft
465 lb‑ft
640d Coupé
Performance
i8 Coupé
640d Coupé
155 mph
Maximum Speed
155 mph
4.4 sec
Acceleration 0 to 62 mph
5.1 sec
62 mph
62
mph
mph
200 ft
0.000 sec
i8 Coupé
62 mph
62
mph
mph
233 ft
0.000 sec
640d Coupé
▶ REPLAY
9.62 lb/hp
Weight-to-Power Ratio
13.34 lb/hp
i8 Coupé
9.62 lb/hp
13.34 lb/hp
640d Coupé
Fuel Economy / Emissions
i8 Coupé
640d Coupé
Fuel Economy
131 mpg
combined
42 mpg
i8 Coupé
131 mpg
42 mpg
640d Coupé
No data
city
36 mpg
No data
highway
No data
7.9 gal
Fuel Tank Capacity
18.5 gal
1036 mi
Range
777 mi
i8 Coupé
1036 mi
777 mi
640d 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).
115.2 kWh
i8 Coupé
34.1 kWh
115.2 kWh
640d Coupé
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 6b (NEFZ)
77 g/mi (WLTP)
CO2 Emissions
240 g/mi (NEFZ)
Practical Convenience
i8 Coupé
640d Coupé
3
Doors
2
4
No. of Seats
4
650 lb
Maximum Payload
981 lb
4.4 cu ft
Trunk Volume
13 cu ft







No data
Cargo Volume (Seats Down)
No data



















