The Comparative Analysis :
BMW 840i Gran Coupé xDrive Steptronic (19 - ..) vs. Mercedes S 450 Coupé 4MATIC 9G-TRONIC PLUS (18 - 18)
€ 94,800

€ 101,700

€ 94,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 101,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ a little. The BMW 840i Gran Coupé is 2 inches longer, 1.3 inches wider and 0.3 inches lower than the Mercedes S 450 Coupé.
BMW 840i Gran Coupé
Mercedes S 450 Coupé
55.4
76.1
84.1
55.7
74.8
83
76.1 in
Width
74.8 in
84.1 in
Width Incl. Mirrors
83 in
55.4 in
Height
55.7 in
119
200.1
115.9
198.1
200.1 in
Length
198.1 in
119 in
Wheelbase
115.9 in
Vehicle Weight
BMW 840i Gran Coupé
Mercedes S 450 Coupé
4255 lb
Curb Weight
4519 lb
5467 lb
Gross Vehicle
Weight
Weight
5633 lb

Weight Difference:
265 lb
5.86 %

General
BMW 840i Gran Coupé
Mercedes S 450 Coupé
G16
Generation
C217
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

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

8-speed automatic transmission
Transmission
9-speed automatic transmission
Engine
BMW 840i Gran Coupé
Mercedes S 450 Coupé
Straight-six gasoline engine with turbocharger
Engine Type
6-cylinder mild hybrid gasoline engine with turbocharger and electric driven compressor
BMW B58
Engine Series
Mercedes-Benz M 276
B58-B30
Engine Code
M 276.824


4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
335 hp
at 5000 rpm
Power
383 hp
at 5500 rpm
BMW 840i Gran Coupé
335 hp
383 hp
Mercedes S 450 Coupé
369 lb‑ft
at 1600 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
BMW 840i Gran Coupé
369 lb‑ft
369 lb‑ft
Mercedes S 450 Coupé
Performance
BMW 840i Gran Coupé
Mercedes S 450 Coupé
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
223 ft
0.000 sec

BMW 840i Gran Coupé
62 mph
62
mph
mph
249 ft
0.000 sec

Mercedes S 450 Coupé
▶ REPLAY
12.7 lb/hp
Weight-to-Power Ratio
11.8 lb/hp
BMW 840i Gran Coupé
12.7 lb/hp
11.8 lb/hp
Mercedes S 450 Coupé
Fuel Economy / Emissions
BMW 840i Gran Coupé
Mercedes S 450 Coupé
Fuel Economy
31 mpg
combined
26 mpg
BMW 840i Gran Coupé
31 mpg
26 mpg
Mercedes S 450 Coupé
25 mpg
city
19 mpg
No data
highway
34 mpg
18 gal
Fuel Tank Capacity
21.1 gal
564 mi
Range
559 mi
BMW 840i Gran Coupé
564 mi
559 mi
Mercedes S 450 Coupé
Environmental Impact
142.1 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).
168.7 kWh
BMW 840i Gran Coupé
142.1 kWh
168.7 kWh
Mercedes S 450 Coupé
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
327 g/mi (WLTP)
CO2 Emissions
328 g/mi (NEFZ)
Practical Convenience
BMW 840i Gran Coupé
Mercedes S 450 Coupé
4
Doors
2
5
No. of Seats
4
1213 lb
Maximum Payload
1113 lb
12.5 cu ft
Trunk Volume
11.3 cu ft








No data
Cargo Volume (Seats Down)
No data