The Comparative Analysis :

Mercedes S 65 AMG Convertible SPEEDSHIFT Plus (16 - 17) vs. BMW 640i Convertible Steptronic (15 - 18)

€ 256,200
Mercedes S 65 AMG Convertible SPEEDSHIFT Plus (16 - 17) Mercedes S 65 AMG Convertible
€ 91,700
 BMW 640i Convertible Steptronic (15 - 18) BMW 640i Cabrio
€ 256,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,700

ⓘ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 5.9 inches longer, 0.7 inches wider and 2.2 inches taller than the BMW 640i Cabrio.
Mercedes S 65 AMG Convertible
BMW 640i Cabrio
56
Blueprint Mercedes S 65 AMG Convertible SPEEDSHIFT Plus (16 - 17)
75.3
83
53.7
Blueprint BMW 640i Convertible Steptronic (15 - 18)
74.6
81.9
75.3 in
Width
74.6 in
83 in
Width Incl. Mirrors
81.9 in
56 in
Height
53.7 in
Blueprint Mercedes S 65 AMG Convertible SPEEDSHIFT Plus (16 - 17)
115.9
198.6
Blueprint BMW 640i Convertible Steptronic (15 - 18)
112.4
192.7
198.6 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
4178 lb
5787 lb
Gross Vehicle
Weight
5126 lb
Mercedes S 65 AMG Convertible SPEEDSHIFT Plus (16 - 17)
Weight Difference:
794 lb
15.97 %
BMW 640i Convertible Steptronic (15 - 18)

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
Rear-wheel drive
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
5.5 sec
62 mph 62
mph

187 ft
0.000 sec

Mercedes S 65 AMG Convertible

62 mph 62
mph

249 ft
0.000 sec

BMW 640i Cabrio

▶ REPLAY
8 lb/hp
Weight-to-Power Ratio
13.22 lb/hp
Mercedes S 65 AMG Convertible
8 lb/hp
13.22 lb/hp
BMW 640i Cabrio

Fuel Economy / Emissions

Mercedes S 65 AMG Convertible
BMW 640i Cabrio
Fuel Economy
20 mpg
combined
31 mpg
Mercedes S 65 AMG Convertible
20 mpg
31 mpg
BMW 640i Cabrio
14 mpg
city
22 mpg
26 mpg
highway
No data
Kraftstoffanzeige
21.1 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
414 mi
Range
565 mi
Mercedes S 65 AMG Convertible
414 mi
565 mi
BMW 640i 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).
145.8 kWh
Mercedes S 65 AMG Convertible
227.4 kWh
145.8 kWh
BMW 640i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
438 g/mi (NEFZ)
CO2 Emissions
288 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
948 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data