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Engine Technical Data
Engine type - Number of cylinders
Inline 4
Boxer 6
Fuel type
Petrol
Petrol
Fuel System
Indirect Injection.
Indirect Injection. Variable Intake
Engine Alignment
Longitudinal
Longitudinal
Engine Position
Front
Central
Engine displacement
109.6 cu-in / 1796 cm3
164 cu-in / 2687 cm3
Bore
3.23 inches
82.0 mm
3.37 inches
85.5 mm
Stroke
3.35 inches
85.0 mm
3.07 inches
78.0 mm
Number of valves
16
24
Aspiration
Compressor + Intercooler
N/A
Compression Ratio
9
11.3
Horsepower
181 HP / 184 PS / 135 kW @ 5500 rpm
242 HP / 245 PS / 180 kW @ 6500 rpm
Maximum torque
184 lb-ft / 250 Nm @ 2800-5000 rpm
201 lb-ft / 273 Nm @ 4600-6000 rpm
Drive wheels - Traction - Drivetrain
RWD
RWD
Transmission Gearbox - Number of speeds
6
5
Clutch Type
Manual
Manual
Size, Dimensions, Aerodynamics and Weight
Body
Cabrio
Cabrio
Num. of Doors
2
2
Num. of Seats
2
2
Seat distribution
2
2
Wheelbase
95.67 inches / 243.0 cm
95.08 inches / 241.5 cm
Length
161.54 inches / 410.3 cm
170.43 inches / 432.9 cm
Width
69.96 inches / 177.7 cm
70.91 inches / 180.1 cm
Height
51.02 inches / 129.6 cm
50.98 inches / 129.5 cm
Front Axle
60.24 inches / 153.0 cm
58.66 inches / 149.0 cm
Rear Axle
60.67 inches / 154.1 cm
60.39 inches / 153.4 cm
Aerodynamic drag coefficient - Cx
0.32
0.29
Front Brakes - Disc dimensions
Vented Discs
Vented Discs (11.73 inches / 298 mm)
Rear Brakes - Disc dimensions
Discs
Vented Discs (11.77 inches / 299 mm)
Front Tyres - Rims dimensions
205/55 R16
205/55 R17
Rear Tyres - Rims dimensions
205/55 R16
235/50 R17
Front Wheels Width
7,0
6,5
Rear Wheels Width
7,0
8,0
Curb Weight
3064 lbs / 1390 kg
3042 lbs / 1380 kg
Weight/Power Output Ratio
7.55 Kg/hp
5.63 Kg/hp
Trunk / Boot capacity
10.6 cu-ft / 300 L
9.9 cu-ft / 280 L
Steering
Rack and pinion
Rack and pinion
Front Suspension
Coil springs.
McPherson struts. Coil springs.
Rear Suspension
Coil springs.
McPherson struts. Coil springs.
Top Speed
147 Mph / 236 km/h
160 Mph / 258 km/h
Acceleration 0 to 100 km/h (0 to 62 mph)
7.6 s
6.1 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - Combined
31 MPG
7.7 L/100 km
37 MPG UK
25 MPG
9.3 L/100 km
30 MPG UK
Fuel Consumption - Economy - Open road
41 MPG
5.7 L/100 km
50 MPG UK
35 MPG
6.8 L/100 km
42 MPG UK
Fuel Consumption - Economy - City
21 MPG
11 L/100 km
26 MPG UK
17 MPG
13.8 L/100 km
20 MPG UK
Range
565 miles / 909 km
428 miles / 688 km
Fuel Tank Capacity
18.5 gallons
70 L
15.4 UK gallons
16.9 gallons
64 L
14.1 UK gallons
CO2 emissions
182 g/Km (Mercedes Benz)
222 g/Km (Porsche)