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Engine Technical Data
Engine type - Number of cylinders
Inline 6
Inline 4
Inline 6
Engine Code
M 256 E 30 DEH LA G
M256
Fuel type
Petrol
Diesel
Petrol
Fuel System
Direct Injection
Common Rail
Direct Injection
Engine Alignment
Longitudinal
Longitudinal
Longitudinal
Engine Position
Front
Front
Front
Engine displacement
183 cu-in / 2999 cm3
119 cu-in / 1950 cm3
183 cu-in / 2999 cm3
Bore
3.27 inches
83.0 mm
3.23 inches
82.0 mm
3.27 inches
83 mm
Stroke
3.64 inches
92.4 mm
3.63 inches
92.3 mm
3.64 inches
92.4 mm
Number of valves
24
16
24
Aspiration
Turbo Intercooler
Turbo Intercooler
Turbo Intercooler
Compression Ratio
10.5
15.5
10.5
Total System Power
429 HP / 435 PS / 320 kW
191 HP / 194 PS / 143 kW
362 HP / 367 PS / 270 kW
Total System Torque
383 lb-ft / 520 Nm
295 lb-ft / 400 Nm
368 lb-ft / 500 Nm
Horsepower
429 HP / 435 PS / 320 kW
191 HP / 194 PS / 143 kW @ 3800 rpm
362 HP / 367 PS / 270 kW @ 5250 rpm
Maximum torque
383 lb-ft / 520 Nm @ 2500 rpm
295 lb-ft / 400 Nm @ 1600 rpm
368 lb-ft / 500 Nm @ 1800 rpm
Drive wheels - Traction - Drivetrain
AWD
AWD
AWD
Transmission Gearbox - Number of speeds
9
9
9
Clutch Type
Automatic
Automatic
Automatic
Size, Dimensions, Aerodynamics and Weight
Body
Coupé
Coupé
Coupé
Num. of Doors
2
2
2
Num. of Seats
5
5
5
Wheelbase
113.11 inches / 287.3 cm
113.11 inches / 287.3 cm
113.11 inches / 287.3 cm
Length
190.71 inches / 484.4 cm
190.71 inches / 484.4 cm
190.71 inches / 484.4 cm
Width
73.23 inches / 186.0 cm
73.23 inches / 186.0 cm
73.23 inches / 186.0 cm
Height
56.38 inches / 143.2 cm
56.38 inches / 143.2 cm
56.38 inches / 143.2 cm
Front Axle
63.03 inches / 160.1 cm
63.03 inches / 160.1 cm
63.03 inches / 160.1 cm
Rear Axle
62.83 inches / 159.6 cm
62.83 inches / 159.6 cm
62.83 inches / 159.6 cm
Front Brakes - Disc dimensions
Vented Discs
Vented Discs
Vented Discs
Rear Brakes - Disc dimensions
Vented Discs
Vented Discs
Vented Discs
Front Tyres - Rims dimensions
245/35 R20
245/45 R18
245/45 R18
Rear Tyres - Rims dimensions
275/30 R20
245/45 R18
245/45 R18
Curb Weight
4383 lbs / 1988 kg
4129 lbs / 1873 kg
4372 lbs / 1983 kg
Dry Weight
4123 lbs / 1870 kg
3869 lbs / 1755 kg
4112 lbs / 1865 kg
Max. Towing Capacity Weight
3968 lbs / 1800 kg
3968 lbs / 1800 kg
3968 lbs / 1800 kg
Weight/Power Output Ratio
4.57 Kg/hp
9.65 Kg/hp
5.4 Kg/hp
Trunk / Boot capacity
15 cu-ft / 425 L
15 cu-ft / 425 L
15 cu-ft / 425 L
Turning circle
37.4 feet / 11.4 m
37.4 feet / 11.4 m
37.4 feet / 11.4 m
Front Suspension
Independent Double wishbone. Coil Springs. Anti-roll bar.
Independent Double wishbone. Coil Springs. Anti-roll bar.
Independent Double wishbone. Coil Springs. Anti-roll bar.
Rear Suspension
Multi-link. Coil Springs. Anti-roll bar.
Multi-link. Coil Springs. Anti-roll bar.
Multi-link. Coil Springs. Anti-roll bar.
Top Speed
155 Mph / 250 km/h
149 Mph / 239 km/h
155 Mph / 250 km/h
Acceleration 0 to 100 km/h (0 to 62 mph)
4.4 s
7.6 s
5.0 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - Combined WLTP
25 MPG
9.3 L/100 km
30 MPG UK
42 MPG
5.6 L/100 km
50 MPG UK
29 MPG
8.2 L/100 km
34 MPG UK
Range WLTP
441 miles / 710 km
733 miles / 1179 km
500 miles / 805 km
Fuel Tank Capacity
17.4 gallons
66 L
14.5 UK gallons
17.4 gallons
66 L
14.5 UK gallons
17.4 gallons
66 L
14.5 UK gallons
CO2 emissions WLTP
213 g/Km (Mercedes Benz)
148 g/Km (Mercedes Benz)
187 g/Km (Mercedes Benz)