The Comparative Analysis :
BMW 640i Gran Coupé Automatic (12 - 13) vs. Porsche 911 Carrera Coupé 4S (12 - 15)
€ 79,900

€ 112,300

€ 79,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 112,300
ⓘ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 51.6 cm longer, 4.2 cm wider and 9.6 cm taller than the Porsche 911 Carrera Coupé 4S.
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
1392
1894
2081
1296
1852
1978
1894 mm
Width
1852 mm
2081 mm
Width Incl. Mirrors
1978 mm
1392 mm
Height
1296 mm
2968
5007
2450
4491
5007 mm
Length
4491 mm
2968 mm
Wheelbase
2450 mm
Vehicle Weight
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
1825 kg
Kerb Weight
1520 kg
2360 kg
Gross Vehicle
Weight
Weight
1875 kg

Weight Difference:
305 kg
16.71 %

General
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
F06
Generation
991
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)

Rear-wheel drive
Drive
Permanent all-wheel drive

8-speed automatic transmission
Transmission
7-speed manual transmission
Engine
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
Straight-six petrol engine with turbocharger
Engine Type
6-cylinder boxer petrol engine (naturally aspirated engine)
BMW N55
Engine Series
N55-B30
Engine Code

4
Valves
4
6
Cylinders
6
2979 CC
Engine Capacity
3800 CC
316 bhp
at 5800 rpm
Power
395 bhp
at 7400 rpm
BMW 640i Gran Coupé
316 bhp
395 bhp
Porsche 911 Carrera Coupé 4S
450 NM
at 1300 rpm
Max. Torque
440 NM
at 5600 rpm
BMW 640i Gran Coupé
450 NM
440 NM
Porsche 911 Carrera Coupé 4S
Performance
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
155 mph
Maximum Speed
186 mph
5.4 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
75 m
0.000 sec

BMW 640i Gran Coupé
62 mph
62
mph
mph
63 m
0.000 sec

Porsche 911 Carrera Coupé 4S
▶ REPLAY
5.78 kg/bhp
Weight-to-Power Ratio
3.85 kg/bhp
BMW 640i Gran Coupé
5.78 kg/bhp
3.85 kg/bhp
Porsche 911 Carrera Coupé 4S
Fuel Economy / Emissions
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
Fuel Economy
36 mpg
combined
29 mpg
BMW 640i Gran Coupé
36 mpg
29 mpg
Porsche 911 Carrera Coupé 4S
27 mpg
city
20 mpg
No data
motorway
38 mpg
70 L
Fuel Tank Capacity
68 L
557 mi
Range
427 mi
BMW 640i Gran Coupé
557 mi
427 mi
Porsche 911 Carrera Coupé 4S
Environmental Impact
147.7 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).
187.5 kWh
BMW 640i Gran Coupé
147.7 kWh
187.5 kWh
Porsche 911 Carrera Coupé 4S
Euro 5
Emission Standard
Euro 5 / Euro 6
181 g/km (NEFZ)
CO2 Emissions
234 g/km (NEFZ)
Practical Convenience
BMW 640i Gran Coupé
Porsche 911 Carrera Coupé 4S
4
Doors
2
5
No. of Seats
4
535 kg
Maximum Payload
355 kg
460 L
Boot Capacity
125 L






No data
Boot Capacity (Seats Down)
No data