The Comparative Analysis :
BMW 840i Convertible Steptronic (19 - ..) vs. Mercedes S 63 AMG Convertible 4MATIC SPEEDSHIFT MCT (16 - 17)
€ 102,500

€ 190,000

€ 102,500
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 840i Cabrio is considerably smaller in every dimension. It's 7.9 inches shorter, 0.4 inches narrower and 3.3 inches lower than the Mercedes S 63 AMG Convertible.
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
52.7
74.9
84.1
56
75.3
83
74.9 in
Width
75.3 in
84.1 in
Width Incl. Mirrors
83 in
52.7 in
Height
56 in
111.1
190.7
115.9
198.6
190.7 in
Length
198.6 in
111.1 in
Wheelbase
115.9 in
Vehicle Weight
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
4200 lb
Curb Weight
4817 lb
5159 lb
Gross Vehicle
Weight
Weight
5809 lb

Weight Difference:
617 lb
12.81 %

General
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
G14
Generation
A217
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
Straight-six gasoline engine with turbocharger
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
BMW B58
Engine Series
Mercedes-Benz M 157
B58-B30
Engine Code
M 157.985


4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
5.5 L / 269 cu in
335 hp
at 5000 rpm
Power
577 hp
at 5500 rpm
BMW 840i Cabrio
335 hp
577 hp
Mercedes S 63 AMG Convertible
369 lb‑ft
at 1600 rpm
Max. Torque
664 lb‑ft
at 2250 rpm
BMW 840i Cabrio
369 lb‑ft
664 lb‑ft
Mercedes S 63 AMG Convertible
Performance
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
155 mph
Maximum Speed
155 mph
5.3 sec
Acceleration 0 to 62 mph
3.9 sec
62 mph
62
mph
mph
243 ft
0.000 sec

BMW 840i Cabrio
62 mph
62
mph
mph
177 ft
0.000 sec

Mercedes S 63 AMG Convertible
▶ REPLAY
12.54 lb/hp
Weight-to-Power Ratio
8.35 lb/hp
BMW 840i Cabrio
12.54 lb/hp
8.35 lb/hp
Mercedes S 63 AMG Convertible
Fuel Economy / Emissions
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
Fuel Economy
32 mpg
combined
23 mpg
BMW 840i Cabrio
32 mpg
23 mpg
Mercedes S 63 AMG Convertible
26 mpg
city
16 mpg
No data
highway
29 mpg
18 gal
Fuel Tank Capacity
21.1 gal
571 mi
Range
478 mi
BMW 840i Cabrio
571 mi
478 mi
Mercedes S 63 AMG Convertible
Environmental Impact
140.2 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).
197 kWh
BMW 840i Cabrio
140.2 kWh
197 kWh
Mercedes S 63 AMG Convertible
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
311 g/mi (WLTP)
CO2 Emissions
393 g/mi (NEFZ)
Practical Convenience
BMW 840i Cabrio
Mercedes S 63 AMG Convertible
2
Doors
2
4
No. of Seats
4
959 lb
Maximum Payload
992 lb
9.9 cu ft
Trunk Volume
9.9 cu ft








No data
Cargo Volume (Seats Down)
No data