The Comparative Analysis :
BMW 640i Gran Coupé xDrive Steptronic (13 - 14) vs. Porsche 911 GT3 (17 - 18)
€ 83,300
€ 152,400
€ 83,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 152,400
ⓘ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 17.5 inches longer, 1.7 inches wider and 4.8 inches taller than the Porsche 911 GT3.
BMW 640i Gran Coupé
Porsche 911 GT3
54.8
74.6
81.9
50
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 in
116.9
197.1
96.7
179.6
197.1 in
Length
179.6 in
116.9 in
Wheelbase
96.7 in
Vehicle Weight
BMW 640i Gran Coupé
Porsche 911 GT3
4189 lb
Curb Weight
3280 lb
5357 lb
Gross Vehicle
Weight
Weight
3880 lb
Weight Difference:
908 lb
21.68 %
General
BMW 640i Gran Coupé
Porsche 911 GT3
F06
Generation
991
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
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
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 GT3
Performance
BMW 640i Gran Coupé
Porsche 911 GT3
155 mph
Maximum Speed
199 mph
5.3 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
243 ft
0.000 sec
BMW 640i Gran Coupé
62 mph
62
mph
mph
177 ft
0.000 sec
Porsche 911 GT3
▶ REPLAY
13.26 lb/hp
Weight-to-Power Ratio
6.65 lb/hp
BMW 640i Gran Coupé
13.26 lb/hp
6.65 lb/hp
Porsche 911 GT3
Fuel Economy / Emissions
BMW 640i Gran Coupé
Porsche 911 GT3
Fuel Economy
29 mpg
combined
18 mpg
BMW 640i Gran Coupé
29 mpg
18 mpg
Porsche 911 GT3
21 mpg
city
12 mpg
No data
highway
27 mpg
18.5 gal
Fuel Tank Capacity
16.9 gal
537 mi
Range
308 mi
BMW 640i Gran Coupé
537 mi
308 mi
Porsche 911 GT3
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).
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).
244.5 kWh
BMW 640i Gran Coupé
153.5 kWh
244.5 kWh
Porsche 911 GT3
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
304 g/mi (NEFZ)
CO2 Emissions
467 g/mi (NEFZ)
Practical Convenience
BMW 640i Gran Coupé
Porsche 911 GT3
4
Doors
2
5
No. of Seats
4
1168 lb
Maximum Payload
600 lb
13 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data
