The Comparative Analysis :
BMW 640i Coupé xDrive Steptronic (15 - 17) vs. Mercedes S 500 Coupé 9G-TRONIC (14 - 17)
€ 85,300

€ 125,000

€ 85,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 125,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 640i Coupé is slightly smaller in every dimension. It's 5.2 inches shorter, 0.2 inches narrower and 1.7 inches lower than the Mercedes S 500 Coupé.
BMW 640i Coupé
Mercedes S 500 Coupé
53.9
74.6
81.9
55.6
74.8
83
74.6 in
Width
74.8 in
81.9 in
Width Incl. Mirrors
83 in
53.9 in
Height
55.6 in
112.4
192.7
115.9
197.9
192.7 in
Length
197.9 in
112.4 in
Wheelbase
115.9 in
Vehicle Weight
BMW 640i Coupé
Mercedes S 500 Coupé
4057 lb
Curb Weight
4475 lb
4993 lb
Gross Vehicle
Weight
Weight
5699 lb

Weight Difference:
419 lb
9.36 %

General
BMW 640i Coupé
Mercedes S 500 Coupé
F13
Generation
C217
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

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

8-speed automatic transmission
Transmission
9-speed automatic transmission
Engine
BMW 640i Coupé
Mercedes S 500 Coupé
Straight-six gasoline engine with turbocharger
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
BMW N55
Engine Series
Mercedes-Benz M 278
N55-B30
Engine Code
M 278.929


4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.7 L / 230 cu in
316 hp
at 5800 rpm
Power
449 hp
at 5250 rpm
BMW 640i Coupé
316 hp
449 hp
Mercedes S 500 Coupé
332 lb‑ft
at 1300 rpm
Max. Torque
516 lb‑ft
at 1800 rpm
BMW 640i Coupé
332 lb‑ft
516 lb‑ft
Mercedes S 500 Coupé
Performance
BMW 640i Coupé
Mercedes S 500 Coupé
155 mph
Maximum Speed
155 mph
5.2 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
236 ft
0.000 sec

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

Mercedes S 500 Coupé
▶ REPLAY
12.84 lb/hp
Weight-to-Power Ratio
9.97 lb/hp
BMW 640i Coupé
12.84 lb/hp
9.97 lb/hp
Mercedes S 500 Coupé
Fuel Economy / Emissions
BMW 640i Coupé
Mercedes S 500 Coupé
Fuel Economy
29 mpg
combined
28 mpg
BMW 640i Coupé
29 mpg
28 mpg
Mercedes S 500 Coupé
21 mpg
city
20 mpg
No data
highway
37 mpg
18.5 gal
Fuel Tank Capacity
21.1 gal
544 mi
Range
599 mi
BMW 640i Coupé
544 mi
599 mi
Mercedes S 500 Coupé
Environmental Impact
151.6 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).
157.2 kWh
BMW 640i Coupé
151.6 kWh
157.2 kWh
Mercedes S 500 Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
301 g/mi (NEFZ)
CO2 Emissions
311 g/mi (NEFZ)
Practical Convenience
BMW 640i Coupé
Mercedes S 500 Coupé
2
Doors
2
4
No. of Seats
4
937 lb
Maximum Payload
1224 lb
13 cu ft
Trunk Volume
11.3 cu ft









No data
Cargo Volume (Seats Down)
No data