The Comparative Analysis :
Mercedes S 65 AMG Convertible SPEEDSHIFT PLUS 7G-TRONIC (18 - 19) vs. BMW 650i Convertible Automatic (11 - 12)
€ 258,900

€ 94,300

€ 258,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 94,300
ⓘ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 650i Cabrio.
Mercedes S 65 AMG Convertible
BMW 650i 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 650i Cabrio
4971 lb
Curb Weight
4442 lb
5787 lb
Gross Vehicle
Weight
Weight
5269 lb

Weight Difference:
529 lb
10.64 %

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

Rear-wheel drive
Drivetrain
Rear-wheel drive

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

4
Valves
4
12
Cylinders
8
6 L / 294 cu in
Displacement
4.4 L / 215 cu in
621 hp
at 4800 rpm
Power
402 hp
at 5500 rpm
Mercedes S 65 AMG Convertible
621 hp
402 hp
BMW 650i Cabrio
738 lb‑ft
at 2300 rpm
Max. Torque
443 lb‑ft
at 1750 rpm
Mercedes S 65 AMG Convertible
738 lb‑ft
443 lb‑ft
BMW 650i Cabrio
Performance
Mercedes S 65 AMG Convertible
BMW 650i Cabrio
155 mph
Maximum Speed
155 mph
4.1 sec
Acceleration 0 to 62 mph
5 sec
62 mph
62
mph
mph
187 ft
0.000 sec

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

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








No data
Cargo Volume (Seats Down)
No data