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BMW Z3 Roadster 2.8i
BMW Z3 Roadster 2.8i (1998)
BMW Z4 Roadster (E85) 2.5si
BMW Z4 Roadster (E85) 2.5si (2006)
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Engine Technical Data
Engine type - Number of cylinders
Inline 6
Inline 6
Engine Code
M52B28
Fuel type
Petrol
Petrol
Fuel System
Siemens DME MS42.0
MPI
Engine Alignment
Longitudinal
Longitudinal
Engine Position
Front
Engine displacement
170.4 cu-in / 2793 cm3
152.4 cu-in / 2497 cm3
Bore
3.31 inches
84 mm
3.23 inches
82.0 mm
Stroke
3.31 inches
84 mm
3.1 inches
78.8 mm
Number of valves
24
24
Aspiration
N/A
N/A
Compression Ratio
10.2
11.0
Horsepower
190 HP / 193 PS / 142 kW @ 5500 rpm
215 HP / 218 PS / 160 kW @ 6500 rpm
Maximum torque
206 lb-ft / 280 Nm @ 3500 rpm
184 lb-ft / 250 Nm @ 2750 - 4250 rpm
Drive wheels - Traction - Drivetrain
RWD
RWD
Transmission Gearbox - Number of speeds
5
6
Clutch Type
Manual
Manual
Size, Dimensions, Aerodynamics and Weight
Body
Roadster
Num. of Doors
2
2
Num. of Seats
2
2
Front legroom
46.46 inches / 118.0 cm
Front shoulder room
51.77 inches / 131.5 cm
Front head room
37.01 inches / 94.0 cm
Wheelbase
96.26 inches / 244.5 cm
98.43 inches / 250.0 cm
Length
159.45 inches / 405.0 cm
161.02 inches / 409.0 cm
Width
68.5 inches / 174.0 cm
70.08 inches / 178.0 cm
Height
51.18 inches / 130.0 cm
51.18 inches / 130.0 cm
Front Axle
55.71 inches / 141.5 cm
Rear Axle
58.86 inches / 149.5 cm
Aerodynamic drag coefficient - Cx
0.42
0.36
Front Brakes - Disc dimensions
Vented Discs (11.26 inches / 286 mm)
Vented Discs (11.81 inches / 300 mm)
Rear Brakes - Disc dimensions
Discs (10.71 inches / 272 mm)
Discs (11.57 inches / 294 mm)
Front Tyres - Rims dimensions
225/50 R16
225/50 R16
Rear Tyres - Rims dimensions
225/50 R16
225/50 R16
Curb Weight
2998 lbs / 1360 kg
2778 lbs / 1260 kg
Weight/Power Output Ratio
7.05 Kg/hp
5.78 Kg/hp
Trunk / Boot capacity
5.8 cu-ft / 165 L
- cu-ft / 240-260 L
Turning circle
32.8 feet / 10.0 m
Steering wheel lock-to-lock
2.8 turns
Front Suspension
Single-joint spring struts
Independent. MacPherson. Coil Springs. Anti-roll bar.
Rear Suspension
Semi-trailing arm
Independent transverse arms. coil springs
Top Speed
140 Mph / 225 km/h
149 Mph / 240 km/h
Acceleration 0 to 100 km/h (0 to 62 mph)
6.9 s
6.5 s
Acceleration 0 to 1000m
27.4 s
26.5 s
Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - City NEDC
18 MPG
12.9 L/100 km
22 MPG UK
20 MPG
12 L/100 km
24 MPG UK
Fuel Consumption - Economy - Open road NEDC
32 MPG
7.4 L/100 km
38 MPG UK
37 MPG
6.3 L/100 km
45 MPG UK
Fuel Consumption - Economy - Combined NEDC
25 MPG
9.4 L/100 km
30 MPG UK
28 MPG
8.4 L/100 km
34 MPG UK
Fuel Tank Capacity
13.5 gallons
51 L
11.2 UK gallons
14.5 gallons
55 L
12.1 UK gallons
CO2 emissions
225 g/Km (BMW)
202 g/Km (BMW)
Safety
Euro NCAP



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