The Comparative Analysis :
Mercedes S 65 AMG Convertible SPEEDSHIFT Plus (16 - 17) vs. BMW M850i Convertible xDrive Steptronic Sport (19 - ..)
€ 256,200

€ 133,700

€ 256,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 133,700
ⓘ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 7.6 inches longer, 0.4 inches wider and 3 inches taller than the BMW M850i Cabrio.
Mercedes S 65 AMG Convertible
BMW M850i Cabrio
56
75.3
83
53
74.9
84.1
75.3 in
Width
74.9 in
83 in
Width Incl. Mirrors
84.1 in
56 in
Height
53 in
115.9
198.6
111.1
191
198.6 in
Length
191 in
115.9 in
Wheelbase
111.1 in
Vehicle Weight
Mercedes S 65 AMG Convertible
BMW M850i Cabrio
4971 lb
Curb Weight
4608 lb
5787 lb
Gross Vehicle
Weight
Weight
5545 lb

Weight Difference:
364 lb
7.32 %

General
Mercedes S 65 AMG Convertible
BMW M850i Cabrio
A217
Generation
G14
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 M850i 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
523 hp
at 5500 rpm
Mercedes S 65 AMG Convertible
621 hp
523 hp
BMW M850i Cabrio
738 lb‑ft
at 2300 rpm
Max. Torque
553 lb‑ft
at 1800 rpm
Mercedes S 65 AMG Convertible
738 lb‑ft
553 lb‑ft
BMW M850i Cabrio
Performance
Mercedes S 65 AMG Convertible
BMW M850i Cabrio
155 mph
Maximum Speed
155 mph
4.1 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
187 ft
0.000 sec

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

BMW M850i Cabrio
▶ REPLAY
8 lb/hp
Weight-to-Power Ratio
8.81 lb/hp
Mercedes S 65 AMG Convertible
8 lb/hp
8.81 lb/hp
BMW M850i Cabrio
Fuel Economy / Emissions
Mercedes S 65 AMG Convertible
BMW M850i Cabrio
Fuel Economy
20 mpg
combined
23 mpg
Mercedes S 65 AMG Convertible
20 mpg
23 mpg
BMW M850i Cabrio
14 mpg
city
No data
26 mpg
highway
No data
21.1 gal
Fuel Tank Capacity
18 gal
414 mi
Range
414 mi
Mercedes S 65 AMG Convertible
414 mi
414 mi
BMW M850i Cabrio
Environmental Impact
227.4 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).
193.3 kWh
Mercedes S 65 AMG Convertible
227.4 kWh
193.3 kWh
BMW M850i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
438 g/mi (NEFZ)
CO2 Emissions
420 g/mi (WLTP)
Practical Convenience
Mercedes S 65 AMG Convertible
BMW M850i Cabrio
2
Doors
2
4
No. of Seats
4
816 lb
Maximum Payload
937 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data