The Comparative Analysis :

BMW 640i Gran Coupé xDrive Automatic (13 - 13) vs. Porsche 911 GT3 RS 4.0 (11 - 12)

€ 83,300
BMW 640i Gran Coupé xDrive Automatic (13 - 13) BMW 640i Gran Coupé
€ 178,600
 Porsche 911 GT3 RS 4.0 (11 - 12) Porsche 911 GT3 RS 4.0
€ 83,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 178,600

ⓘ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 21.5 inches longer, 1.7 inches wider and 4.4 inches taller than the Porsche 911 GT3 RS 4.0.
BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
54.8
Blueprint BMW 640i Gran Coupé xDrive Automatic (13 - 13)
74.6
81.9
50.4
Blueprint Porsche 911 GT3 RS 4.0 (11 - 12)
72.9
80.8
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
80.8 in
54.8 in
Height
50.4 in
Blueprint BMW 640i Gran Coupé xDrive Automatic (13 - 13)
116.9
197.1
Blueprint Porsche 911 GT3 RS 4.0 (11 - 12)
92.7
175.6
197.1 in
Length
175.6 in
116.9 in
Wheelbase
92.7 in

Vehicle Weight

BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
4189 lb
Curb Weight
3164 lb
5357 lb
Gross Vehicle
Weight
3704 lb
BMW 640i Gran Coupé xDrive Automatic (13 - 13)
Weight Difference:
1025 lb
24.47 %
Porsche 911 GT3 RS 4.0 (11 - 12)

General

BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
F06
Generation
997
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
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 GT3 RS 4.0
332 lb‑ft
at 1300 rpm
Max. Torque
339 lb‑ft
at 5750 rpm
BMW 640i Gran Coupé
332 lb‑ft
339 lb‑ft
Porsche 911 GT3 RS 4.0

Performance

BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
155 mph
Maximum Speed
193 mph
5.3 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph 62
mph

243 ft
0.000 sec

BMW 640i Gran Coupé

62 mph 62
mph

177 ft
0.000 sec

Porsche 911 GT3 RS 4.0

▶ REPLAY
13.26 lb/hp
Weight-to-Power Ratio
6.42 lb/hp
BMW 640i Gran Coupé
13.26 lb/hp
6.42 lb/hp
Porsche 911 GT3 RS 4.0

Fuel Economy / Emissions

BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
Fuel Economy
29 mpg
combined
17 mpg
BMW 640i Gran Coupé
29 mpg
17 mpg
Porsche 911 GT3 RS 4.0
21 mpg
city
12 mpg
No data
highway
24 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
17.7 gal
Kraftstoffanzeige
537 mi
Range
302 mi
BMW 640i Gran Coupé
537 mi
302 mi
Porsche 911 GT3 RS 4.0
Environmental Impact
153.5 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).
261.5 kWh
BMW 640i Gran Coupé
153.5 kWh
261.5 kWh
Porsche 911 GT3 RS 4.0
Euro 5
Emission Standard
Euro 5
304 g/mi (NEFZ)
CO2 Emissions
525 g/mi (NEFZ)

Practical Convenience

BMW 640i Gran Coupé
Porsche 911 GT3 RS 4.0
4
Doors
2
5
No. of Seats
4
1168 lb
Maximum Payload
540 lb
13 cu ft
Trunk Volume
3 cu ft
No data
Cargo Volume (Seats Down)
No data