The Comparative Analysis :
BMW 640d Gran Coupé Steptronic (15 - 18) vs. BMW i8 Coupé (14 - 18)
€ 89,200
€ 134,000
€ 89,200
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 640d Gran Coupé is 12.5 inches longer, 1.9 inches narrower and 3.9 inches taller than the i8 Coupé.
640d Gran Coupé
i8 Coupé
54.8
74.6
81.9
50.9
76.5
87.3
74.6 in
Width
76.5 in
81.9 in
Width Incl. Mirrors
87.3 in
54.8 in
Height
50.9 in
116.9
197.1
110.2
184.6
197.1 in
Length
184.6 in
116.9 in
Wheelbase
110.2 in
Vehicle Weight
640d Gran Coupé
i8 Coupé
4156 lb
Curb Weight
3439 lb
5313 lb
Gross Vehicle
Weight
Weight
4090 lb
Weight Difference:
717 lb
17.25 %
General
640d Gran Coupé
i8 Coupé
F06
Generation
I12
Coupe
Car Body Style
Coupe
Diesel
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
On-demand four-wheel drive (4WD) with automatic engagement
8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
640d Gran Coupé
i8 Coupé
Straight-six diesel engine with two turbochargers (biturbo)
Engine Type
3-cylinder plug-in hybrid gasoline engine with turbocharger
BMW N57
Engine Series
BMW B38
N57-D30
Engine Code
B38-K15
4
Valves
4
6
Cylinders
3
3 L / 147 cu in
Displacement
1.5 L / 73 cu in
309 hp
at 4400 rpm
Power
357 hp
at 5800 rpm
640d Gran Coupé
309 hp
357 hp
i8 Coupé
465 lb‑ft
at 1500 rpm
Max. Torque
420 lb‑ft
at 3700 rpm
640d Gran Coupé
465 lb‑ft
420 lb‑ft
i8 Coupé
Performance
640d Gran Coupé
i8 Coupé
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
246 ft
0.000 sec
640d Gran Coupé
62 mph
62
mph
mph
200 ft
0.000 sec
i8 Coupé
▶ REPLAY
13.45 lb/hp
Weight-to-Power Ratio
9.63 lb/hp
640d Gran Coupé
13.45 lb/hp
9.63 lb/hp
i8 Coupé
Fuel Economy / Emissions
640d Gran Coupé
i8 Coupé
Fuel Economy
43 mpg
combined
112 mpg
640d Gran Coupé
43 mpg
112 mpg
i8 Coupé
37 mpg
city
No data
No data
highway
No data
18.5 gal
Fuel Tank Capacity
7.9 gal
791 mi
Range
888 mi
640d Gran Coupé
791 mi
888 mi
i8 Coupé
Environmental Impact
113.1 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
640d Gran Coupé
113.1 kWh
39.8 kWh
i8 Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
237 g/mi (NEFZ)
CO2 Emissions
79 g/mi (NEFZ)
Practical Convenience
640d Gran Coupé
i8 Coupé
4
Doors
3
5
No. of Seats
4
1157 lb
Maximum Payload
650 lb
13 cu ft
Trunk Volume
4.4 cu ft
No data
Cargo Volume (Seats Down)
No data
