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Engine Technical Data
Engine type - Number of cylinders
V 8
Inline 6
V 8
Engine Code
M 198 I / 198.980
M 178 DE 40 AL
Fuel type
Petrol
Petrol
Petrol
Fuel System
Direct Injection. Variable Intake
Bosch mechanical direct fuel inj.
Direct Injection.
Lubrication
Dry sump
Engine Cooling
Water
Engine Alignment
Longitudinal
Longitudinal
Longitudinal
Engine Position
Front
Front
Engine displacement
333.3 cu-in / 5461 cm3
182.8 cu-in / 2996 cm3
243 cu-in / 3982 cm3
Bore
3.86 inches
98.0 mm
3.35 inches
85.00 mm
3.27 inches
83.0 mm
Stroke
3.56 inches
90.5 mm
3.46 inches
88.00 mm
3.62 inches
92.0 mm
Number of valves
32
12
32
Aspiration
Turbo + Intercooler
N/A
Turbo Intercooler
Compression Ratio
10.0
9.5
10.5
Horsepower
577 HP / 585 PS / 430 kW @ 5500 rpm
222 HP / 225 PS / 165 kW @ 5800 rpm
470 HP / 476 PS / 350 kW @ 5500-6250 rpm
Maximum torque
663 lb-ft / 900 Nm @ 2250-3750 rpm
202 lb-ft / 274 Nm @ 4600 rpm
479 lb-ft / 650 Nm @ 1750-4500 rpm
Drive wheels - Traction - Drivetrain
RWD
RWD
RWD
Transmission Gearbox - Number of speeds
7
4
7
Clutch Type
Automatic
Manual
Automatic
Size, Dimensions, Aerodynamics and Weight
Body
Cabrio
Coupe
Coupe
Num. of Doors
2
2
2
Num. of Seats
2
4
Seat distribution
2
2+2
Wheelbase
101.77 inches / 258.5 cm
94.49 inches / 240 cm
111.81 inches / 284.0 cm
Length
182.4 inches / 463.3 cm
179.92 inches / 457 cm
188.23 inches / 478.1 cm
Width
73.9 inches / 187.7 cm
70 inches / 177.8 cm
71.26 inches / 181.0 cm
Height
51.18 inches / 130.0 cm
51.26 inches / 130.2 cm
Front Axle
63.82 inches / 162.1 cm
54.49 inches / 138.4 cm
Rear Axle
63.15 inches / 160.4 cm
56.5 inches / 143.5 cm
Ground clearance
5 inches / 12.7 cm5 inches / 12.7 cm
Aerodynamic drag coefficient - Cx
0.380
Front Brakes - Disc dimensions
Vented Discs (15.35 inches / 390 mm)
Vented Discs
Rear Brakes - Disc dimensions
Vented Discs (14.17 inches / 360 mm)
Vented Discs
Front Tyres - Rims dimensions
255/35 R19
255/40 R18
Rear Tyres - Rims dimensions
285/30 R19
285/35 R18
Front Wheels Width
9.0
5K
9.0
Rear Wheels Width
10.0
5K
10.5
Curb Weight
4068 lbs / 1845 kg
3131 lbs / 1420 kg
3935 lbs / 1785 kg
Weight/Power Output Ratio
3.15 Kg/hp
6.31 Kg/hp
3.75 Kg/hp
Trunk / Boot capacity
12.6 cu-ft / 356 L
Steering
Rack and pinion Electric
Recirculating ball. -
Rack and pinion Electric
Steering wheel lock-to-lock
3.000 turns
Front Suspension
Coil springs.
Double wishbone. Coil Springs. stabilising bar
Coil springs.
Rear Suspension
Coil Springs.
Low-pivot swing axle. transverse compensating spring. coil springs
Coil Springs.
Top Speed
155 Mph / 250 km/h
135 Mph / 217 km/h
155 Mph / 250 km/h
Acceleration 0 to 60 mph (0 to 96 Km/h)
8.80 s
Acceleration 0 to 100 km/h (0 to 62 mph)
4.2 s
4.0 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - Combined
14 MPG
17 L/100 km
17 MPG UK
27 MPG
8.6 L/100 km
33 MPG UK
Fuel Consumption - Economy - City NEDC
17 MPG
13.9 L/100 km
20 MPG UK
Fuel Consumption - Economy - Open road NEDC
31 MPG
7.6 L/100 km
37 MPG UK
Fuel Consumption - Economy - Combined NEDC
24 MPG
9.9 L/100 km
29 MPG UK
27 MPG
8.6 L/100 km
33 MPG UK
Range
365 miles / 588 km
477 miles / 767 km
Fuel Tank Capacity
19.8 gallons
75 L
16.5 UK gallons
26.4 gallons
100 L
22 UK gallons
17.4 gallons
66 L
14.5 UK gallons
CO2 emissions
231 g/Km (Mercedes Benz)
200 g/Km (Mercedes Benz)
Emission standard
Euro VI
Euro VI