The Comparative Analysis :
BMW 650i Convertible xDrive Automatic (12 - 13) vs. Mercedes S 65 AMG Convertible SPEEDSHIFT PLUS 7G-TRONIC (18 - 19)
€ 99,300

€ 258,900

€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 258,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 650i Cabrio is considerably smaller in every dimension. It's 6.2 inches shorter, 0.7 inches narrower and 2.5 inches lower than the Mercedes S 65 AMG Convertible.
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
53.7
74.6
81.9
56.2
75.3
83
74.6 in
Width
75.3 in
81.9 in
Width Incl. Mirrors
83 in
53.7 in
Height
56.2 in
112.4
192.7
115.9
198.9
192.7 in
Length
198.9 in
112.4 in
Wheelbase
115.9 in
Vehicle Weight
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
4530 lb
Curb Weight
4971 lb
5434 lb
Gross Vehicle
Weight
Weight
5787 lb

Weight Difference:
441 lb
8.87 %

General
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
F12
Generation
A217
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
V12 gasoline engine with two turbochargers (biturbo)
BMW N63
Engine Series
Mercedes-Benz M 279
N63-B44
Engine Code
M 279.980

4
Valves
4
8
Cylinders
12
4.4 L / 215 cu in
Displacement
6 L / 294 cu in
444 hp
at 5500 rpm
Power
621 hp
at 4800 rpm
BMW 650i Cabrio
444 hp
621 hp
Mercedes S 65 AMG Convertible
479 lb‑ft
at 2000 rpm
Max. Torque
738 lb‑ft
at 2300 rpm
BMW 650i Cabrio
479 lb‑ft
738 lb‑ft
Mercedes S 65 AMG Convertible
Performance
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
4.1 sec
62 mph
62
mph
mph
223 ft
0.000 sec

BMW 650i Cabrio
62 mph
62
mph
mph
187 ft
0.000 sec

Mercedes S 65 AMG Convertible
▶ REPLAY
10.2 lb/hp
Weight-to-Power Ratio
8 lb/hp
BMW 650i Cabrio
10.2 lb/hp
8 lb/hp
Mercedes S 65 AMG Convertible
Fuel Economy / Emissions
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
Fuel Economy
25 mpg
combined
17 mpg
BMW 650i Cabrio
25 mpg
17 mpg
Mercedes S 65 AMG Convertible
18 mpg
city
12 mpg
No data
highway
22 mpg
18.5 gal
Fuel Tank Capacity
21.1 gal
468 mi
Range
350 mi
BMW 650i Cabrio
468 mi
350 mi
Mercedes S 65 AMG Convertible
Environmental Impact
176.2 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).
269.1 kWh
BMW 650i Cabrio
176.2 kWh
269.1 kWh
Mercedes S 65 AMG Convertible
Euro 5
Emission Standard
Euro 6
349 g/mi (NEFZ)
CO2 Emissions
555 g/mi (WLTP)
Practical Convenience
BMW 650i Cabrio
Mercedes S 65 AMG Convertible
2
Doors
2
4
No. of Seats
4
904 lb
Maximum Payload
816 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data