The Comparative Analysis :
BMW 640i Gran Coupé Steptronic (15 - 18) vs. Porsche 911 R (16 - 17)
€ 84,900
€ 189,500
€ 84,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 189,500
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 640i Gran Coupé is significantly bigger in every dimension. It's 18.7 inches longer, 1.7 inches wider and 4.6 inches taller than the Porsche 911 R.
BMW 640i Gran Coupé
Porsche 911 R
54.8
74.6
81.9
50.2
72.9
77.9
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
77.9 in
54.8 in
Height
50.2 in
116.9
197.1
96.7
178.4
197.1 in
Length
178.4 in
116.9 in
Wheelbase
96.7 in
Vehicle Weight
BMW 640i Gran Coupé
Porsche 911 R
4023 lb
Curb Weight
3186 lb
5203 lb
Gross Vehicle
Weight
Weight
3660 lb
Weight Difference:
838 lb
20.83 %
General
BMW 640i Gran Coupé
Porsche 911 R
F06
Generation
991
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed manual transmission
Engine
BMW 640i Gran Coupé
Porsche 911 R
Straight-six gasoline engine with turbocharger
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
BMW N55
Engine Series
N55-B30
Engine Code

4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
4 L / 196 cu in
316 hp
at 5800 rpm
Power
493 hp
at 8250 rpm
BMW 640i Gran Coupé
316 hp
493 hp
Porsche 911 R
332 lb‑ft
at 1300 rpm
Max. Torque
339 lb‑ft
at 6250 rpm
BMW 640i Gran Coupé
332 lb‑ft
339 lb‑ft
Porsche 911 R
Performance
BMW 640i Gran Coupé
Porsche 911 R
155 mph
Maximum Speed
201 mph
5.4 sec
Acceleration 0 to 62 mph
3.8 sec
62 mph
62
mph
mph
246 ft
0.000 sec
BMW 640i Gran Coupé
62 mph
62
mph
mph
174 ft
0.000 sec
Porsche 911 R
▶ REPLAY
12.73 lb/hp
Weight-to-Power Ratio
6.46 lb/hp
BMW 640i Gran Coupé
12.73 lb/hp
6.46 lb/hp
Porsche 911 R
Fuel Economy / Emissions
BMW 640i Gran Coupé
Porsche 911 R
Fuel Economy
31 mpg
combined
18 mpg
BMW 640i Gran Coupé
31 mpg
18 mpg
Porsche 911 R
22 mpg
city
12 mpg
No data
highway
25 mpg
18.5 gal
Fuel Tank Capacity
16.9 gal
572 mi
Range
299 mi
BMW 640i Gran Coupé
572 mi
299 mi
Porsche 911 R
Environmental Impact
144 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).
252 kWh
BMW 640i Gran Coupé
144 kWh
252 kWh
Porsche 911 R
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
286 g/mi (NEFZ)
CO2 Emissions
496 g/mi (NEFZ)
Practical Convenience
BMW 640i Gran Coupé
Porsche 911 R
4
Doors
2
5
No. of Seats
2
1179 lb
Maximum Payload
474 lb
13 cu ft
Trunk Volume
3.5 cu ft






No data
Cargo Volume (Seats Down)
No data

















