The Comparative Analysis :
BMW 640i Cabrio Steptronic (13 - 14) vs. Mercedes S 63 AMG Cabriolet 4MATIC SPEEDSHIFT MCT (16 - 17)
€ 83,900

€ 190,000

€ 83,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 190,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 640i Cabrio is considerably smaller in every dimension. It's 15 cm shorter, 1.9 cm narrower and 5.7 cm lower than the Mercedes S 63 AMG Cabriolet.
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
1365
1894
2081
1422
1913
2108
1894 mm
Width
1913 mm
2081 mm
Width Incl. Mirrors
2108 mm
1365 mm
Height
1422 mm
2855
4894
2945
5044
4894 mm
Length
5044 mm
2855 mm
Wheelbase
2945 mm
Vehicle Weight
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
1915 kg
Kerb Weight
2185 kg
2290 kg
Gross Vehicle
Weight
Weight
2635 kg

Weight Difference:
270 kg
12.36 %

General
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
F12
Generation
A217
Convertible
Car Body Style
Convertible
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 automatic transmission
Engine
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
Straight-six petrol engine with turbocharger
Engine Type
V8 petrol engine with two turbochargers (biturbo)
BMW N55
Engine Series
Mercedes-Benz M 157
N55-B30
Engine Code
M 157.985


4
Valves
4
6
Cylinders
8
2979 CC
Engine Capacity
5461 CC
316 bhp
at 5800 rpm
Power
577 bhp
at 5500 rpm
BMW 640i Cabrio
316 bhp
577 bhp
Mercedes S 63 AMG Cabriolet
450 NM
at 1300 rpm
Max. Torque
900 NM
at 2250 rpm
BMW 640i Cabrio
450 NM
900 NM
Mercedes S 63 AMG Cabriolet
Performance
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
155 mph
Maximum Speed
155 mph
5.7 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
79 m
0.000 sec

BMW 640i Cabrio
62 mph
62
mph
mph
54 m
0.000 sec

Mercedes S 63 AMG Cabriolet
▶ REPLAY
6.06 kg/bhp
Weight-to-Power Ratio
3.79 kg/bhp
BMW 640i Cabrio
6.06 kg/bhp
3.79 kg/bhp
Mercedes S 63 AMG Cabriolet
Fuel Economy / Emissions
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
Fuel Economy
36 mpg
combined
27 mpg
BMW 640i Cabrio
36 mpg
27 mpg
Mercedes S 63 AMG Cabriolet
26 mpg
city
20 mpg
No data
motorway
34 mpg
70 L
Fuel Tank Capacity
80 L
557 mi
Range
478 mi
BMW 640i Cabrio
557 mi
478 mi
Mercedes S 63 AMG Cabriolet
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).
197 kWh
BMW 640i Cabrio
147.7 kWh
197 kWh
Mercedes S 63 AMG Cabriolet
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
181 g/km (NEFZ)
CO2 Emissions
244 g/km (NEFZ)
Practical Convenience
BMW 640i Cabrio
Mercedes S 63 AMG Cabriolet
2
Doors
2
4
No. of Seats
4
375 kg
Maximum Payload
450 kg
350 L
Boot Capacity
350 L








No data
Boot Capacity (Seats Down)
No data