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Engine Technical Data
Engine type - Number of cylinders
V 8
V 8
V 6
Fuel type
Petrol
Petrol
Petrol
Fuel System
MPI
MPI
Indirect Injection. Variable Intake
Engine Alignment
Longitudinal
Longitudinal
Longitudinal
Engine Position
Front
Front
Front
Engine displacement
331.9 cu-in / 5439 cm3
333.3 cu-in / 5461 cm3
182.8 cu-in / 2996 cm3
Bore
3.82 inches
97.0 mm
3.86 inches
98.0 mm
3.46 inches
88.0 mm
Stroke
3.62 inches
92.0 mm
3.56 inches
90.5 mm
3.23 inches
82.1 mm
Number of valves
32
32
24
Aspiration
Supercharger + Intercooler
N/A
N/A
Compression Ratio
9.0
10.7
11
Horsepower
510 HP / 517 PS / 380 kW @ 6100 rpm
383 HP / 388 PS / 285 kW @ 6000 rpm
228 HP / 231 PS / 170 kW @ 6000 rpm
Maximum torque
531 lb-ft / 720 Nm @ 2600 - 4000 rpm
390 lb-ft / 530 Nm @ 2800 - 4800 rpm
221 lb-ft / 300 Nm @ 2500-5000 rpm
Drive wheels - Traction - Drivetrain
RWD
RWD
RWD
Transmission Gearbox - Number of speeds
5
7
7
Clutch Type
Automatic
Automatic
Automatic
Size, Dimensions, Aerodynamics and Weight
Body
Cabrio
Cabrio
Cabrio
Num. of Doors
2
2
2
Num. of Seats
2
2
2
Seat distribution
2
2
2
Wheelbase
100.79 inches / 256.0 cm
100.79 inches / 256.0 cm
100.79 inches / 256.0 cm
Length
178.54 inches / 453.5 cm
178.43 inches / 453.2 cm
179.61 inches / 456.2 cm
Width
71.93 inches / 182.7 cm
71.93 inches / 182.7 cm
71.65 inches / 182.0 cm
Height
50.98 inches / 129.5 cm
51.1 inches / 129.8 cm
51.85 inches / 131.7 cm
Front Axle
61.38 inches / 155.9 cm
Rear Axle
60.91 inches / 154.7 cm
Aerodynamic drag coefficient - Cx
0.30
Front Brakes - Disc dimensions
Vented Discs (14.17 inches / 360 mm)
Vented Discs (13.78 inches / 350 mm)
Vented Discs
Rear Brakes - Disc dimensions
Vented Discs (12.99 inches / 330 mm)
Vented Discs (12.6 inches / 320 mm)
Discs
Front Tyres - Rims dimensions
255/40 R18
255/45 R17
255/45 R17
Rear Tyres - Rims dimensions
255/40 R18
255/45 R17
255/45 R17
Front Wheels Width
8.5
Rear Wheels Width
8.5
Curb Weight
4321 lbs / 1960 kg
4211 lbs / 1910 kg
4001 lbs / 1815 kg
Weight/Power Output Ratio
3.79 Kg/hp
4.92 Kg/hp
7.86 Kg/hp
Trunk / Boot capacity
12 cu-ft / 339 L
12 cu-ft / 339 L
12 cu-ft / 339 L
Steering
Rack and pinion Electric
Front Suspension
Multi-link
Multi-link
Coil springs.
Rear Suspension
Multi-link
Multi-link
Coil Springs.
Top Speed
155 Mph / 250 km/h
155 Mph / 250 km/h
155 Mph / 250 km/h
Acceleration 0 to 100 km/h (0 to 62 mph)
4.5 s
5.4 s
7.8 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - City NEDC
12 MPG
20.3 L/100 km
14 MPG UK
13 MPG
18.2 L/100 km
16 MPG UK
17 MPG
13.5 L/100 km
21 MPG UK
Fuel Consumption - Economy - Open road NEDC
25 MPG
9.6 L/100 km
29 MPG UK
27 MPG
8.8 L/100 km
32 MPG UK
35 MPG
6.8 L/100 km
42 MPG UK
Fuel Consumption - Economy - Combined NEDC
17 MPG
13.5 L/100 km
21 MPG UK
19 MPG
12.2 L/100 km
23 MPG UK
25 MPG
9.3 L/100 km
30 MPG UK
Fuel Tank Capacity
21.1 gallons
80 L
17.6 UK gallons
21.1 gallons
80 L
17.6 UK gallons
21.1 gallons
80 L
17.6 UK gallons
CO2 emissions
324 g/Km (Mercedes Benz)
291 g/Km (Mercedes Benz)
217 g/Km (Mercedes Benz)
Emission standard
Euro V