The Comparative Analysis :
BMW 640i Coupé Steptronic (15 - 17) vs. Porsche 911 Turbo Coupé S PDK (10 - 13)
€ 81,900

€ 173,200

€ 81,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 173,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 640i Coupé is significantly bigger in every dimension. It's 17.5 inches longer, 1.7 inches wider and 2.7 inches taller than the Porsche 911 Turbo Coupé S.
BMW 640i Coupé
Porsche 911 Turbo Coupé S
53.9
74.6
81.9
51.2
72.9
80.8
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
80.8 in
53.9 in
Height
51.2 in
112.4
192.7
92.5
175.2
192.7 in
Length
175.2 in
112.4 in
Wheelbase
92.5 in
Vehicle Weight
BMW 640i Coupé
Porsche 911 Turbo Coupé S
3880 lb
Curb Weight
3660 lb
4872 lb
Gross Vehicle
Weight
Weight
4299 lb

Weight Difference:
220 lb
5.67 %

General
BMW 640i Coupé
Porsche 911 Turbo Coupé S
F13
Generation
997
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
BMW 640i Coupé
Porsche 911 Turbo Coupé S
Straight-six gasoline engine with turbocharger
Engine Type
6-cylinder boxer gasoline engine with two turbochargers (biturbo)
BMW N55
Engine Series
N55-B30
Engine Code

4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.8 L / 186 cu in
316 hp
at 5800 rpm
Power
523 hp
at 6250 rpm
BMW 640i Coupé
316 hp
523 hp
Porsche 911 Turbo Coupé S
332 lb‑ft
at 1300 rpm
Max. Torque
516 lb‑ft
at 2100 rpm
BMW 640i Coupé
332 lb‑ft
516 lb‑ft
Porsche 911 Turbo Coupé S
Performance
BMW 640i Coupé
Porsche 911 Turbo Coupé S
155 mph
Maximum Speed
196 mph
5.3 sec
Acceleration 0 to 62 mph
3.3 sec
62 mph
62
mph
mph
243 ft
0.000 sec

BMW 640i Coupé
62 mph
62
mph
mph
151 ft
0.000 sec

Porsche 911 Turbo Coupé S
▶ REPLAY
12.28 lb/hp
Weight-to-Power Ratio
7 lb/hp
BMW 640i Coupé
12.28 lb/hp
7 lb/hp
Porsche 911 Turbo Coupé S
Fuel Economy / Emissions
BMW 640i Coupé
Porsche 911 Turbo Coupé S
Fuel Economy
31 mpg
combined
21 mpg
BMW 640i Coupé
31 mpg
21 mpg
Porsche 911 Turbo Coupé S
22 mpg
city
14 mpg
No data
highway
29 mpg
18.5 gal
Fuel Tank Capacity
17.7 gal
572 mi
Range
365 mi
BMW 640i Coupé
572 mi
365 mi
Porsche 911 Turbo Coupé S
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).
216 kWh
BMW 640i Coupé
144 kWh
216 kWh
Porsche 911 Turbo Coupé S
Euro 6b (NEFZ)
Emission Standard
Euro 5
285 g/mi (NEFZ)
CO2 Emissions
431 g/mi (NEFZ)
Practical Convenience
BMW 640i Coupé
Porsche 911 Turbo Coupé S
2
Doors
2
4
No. of Seats
4
992 lb
Maximum Payload
639 lb
13 cu ft
Trunk Volume
3 cu ft







No data
Cargo Volume (Seats Down)
No data