The Comparative Analysis :
Mercedes S 65 AMG Convertible SPEEDSHIFT PLUS 7G-TRONIC (18 - 19) vs. BMW 640i Convertible xDrive Automatic (13 - 13)
€ 258,900

€ 87,300

€ 258,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 87,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes S 65 AMG Convertible is considerably bigger in every dimension. It's 6.2 inches longer, 0.7 inches wider and 2.5 inches taller than the BMW 640i Cabrio.
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
56.2
75.3
83
53.7
74.6
81.9
75.3 in
Width
74.6 in
83 in
Width Incl. Mirrors
81.9 in
56.2 in
Height
53.7 in
115.9
198.9
112.4
192.7
198.9 in
Length
192.7 in
115.9 in
Wheelbase
112.4 in
Vehicle Weight
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
4971 lb
Curb Weight
4376 lb
5787 lb
Gross Vehicle
Weight
Weight
5291 lb

Weight Difference:
595 lb
11.97 %

General
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
A217
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
V12 gasoline engine with two turbochargers (biturbo)
Engine Type
Straight-six gasoline engine with turbocharger
Mercedes-Benz M 279
Engine Series
BMW N55
M 279.980
Engine Code
N55-B30


4
Valves
4
12
Cylinders
6
6 L / 294 cu in
Displacement
3 L / 147 cu in
621 hp
at 4800 rpm
Power
316 hp
at 5800 rpm
Mercedes S 65 AMG Convertible
621 hp
316 hp
BMW 640i Cabrio
738 lb‑ft
at 2300 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
Mercedes S 65 AMG Convertible
738 lb‑ft
332 lb‑ft
BMW 640i Cabrio
Performance
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
155 mph
Maximum Speed
155 mph
4.1 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
187 ft
0.000 sec

Mercedes S 65 AMG Convertible
62 mph
62
mph
mph
246 ft
0.000 sec

BMW 640i Cabrio
▶ REPLAY
8 lb/hp
Weight-to-Power Ratio
13.85 lb/hp
Mercedes S 65 AMG Convertible
8 lb/hp
13.85 lb/hp
BMW 640i Cabrio
Fuel Economy / Emissions
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
Fuel Economy
17 mpg
combined
29 mpg
Mercedes S 65 AMG Convertible
17 mpg
29 mpg
BMW 640i Cabrio
12 mpg
city
21 mpg
22 mpg
highway
No data
21.1 gal
Fuel Tank Capacity
18.5 gal
350 mi
Range
531 mi
Mercedes S 65 AMG Convertible
350 mi
531 mi
BMW 640i Cabrio
Environmental Impact
269.1 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).
155.3 kWh
Mercedes S 65 AMG Convertible
269.1 kWh
155.3 kWh
BMW 640i Cabrio
Euro 6
Emission Standard
Euro 5
555 g/mi (WLTP)
CO2 Emissions
309 g/mi (NEFZ)
Practical Convenience
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
2
Doors
2
4
No. of Seats
4
816 lb
Maximum Payload
915 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data