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| Technical Specs of This Model |
| 1. |
Z4 M Roadster 2005
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| General Information |
| Make |
BMW |
| Model |
Z4 M Roadster |
| Production Year |
2005 |
| Country |
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| Designer |
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| Production Number |
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| Model Code |
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| Model Family |
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| Chassis and Dimensions |
| Chassis Type |
2S DHC |
| Number of Doors |
2 |
| Wheelbase |
2497 mm (98,3 in) |
| Front Track |
1486 mm (58,5 in) |
| Rear Track |
1516 mm (59,7 in) |
| Length |
4113 mm (161,9 in) |
| Width |
1781 mm (70,1 in) |
| Height |
1302 mm (51,3 in) |
| Ground Clearance |
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| Length / Wheelbase Ratio |
1,65 |
| Weight |
1485 kg (3270,9 lb) |
| Weight Distribution (front/rear) |
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| Fuel Capacity |
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| Aerodynamics |
| Drag Coefficient |
0,37 |
| Frontal Area |
1,92 |
| Cx |
0,71 |
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| Engine Specifications |
| Engine Manufacturer |
BMW |
| Engine Location |
Front |
| Engine Alignment |
Longitudinal |
| Engine Construction |
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| Coolant Type |
Water |
| Engine Type |
DOHC |
| Number of Cylinders and Placement |
S-6 |
| Valves per Cylinder |
4 (Total of 24 Pieces) |
| Engine Displacement |
3246 cc (198,08 cu in) |
| Bore |
87 mm (3,43 in) |
| Stroke |
91 mm (3,58 in) |
| Bore / Stroke Ratio |
0,96 |
| Unitary Capacity |
541 cc/cylinder (33,01 cu in/cylinder) |
| Number of Main Bearings |
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| Compression Ratio |
11,5 : 1 |
| Fuel System Type |
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| Aspiration Type |
Normal |
| Compressor Type |
- |
| Intercooler Type |
None |
| Catalytic Converter |
Yes |
| Maximum Engine Power |
338 HP (252 kW) |
| Maximum Engine Power rpm |
7900 d/d |
| Maximum Engine Torque |
365 N.m (269,4 lb.ft , 37,2 kg.m) |
| Maximum Engine Torque rpm |
4900 d/d |
| Engine Torque at Max. Engine Power rpm |
304,7 N.m (7900 d/d) |
| Power / Weight Ratio |
227,6 HP/ton (169,7 W/kg) |
| Power / Engine Displacement Ratio |
104,1 HP/litre (77,6 kW/litre) |
| CO2 Emissions |
292 g/km |
| Fuel Consumption |
18.2/8.6/12.1 l/100km urban/extra-urban/combined |
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| Performance |
| 0 - 80 km/h |
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| 0 - 60 mph |
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| 0 - 100 km/h |
5 s |
| 0 - 160 km/h |
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| 80 - 120 km/h (in top gear) |
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| 0 - 400 m Acceleration |
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| 0 - 1000 m Acceleration |
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| Top Speed |
250 km/h (155,4 mph) |
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| Gearbox and Transmission |
| Transmission Type |
6M |
| Top Gear Ratio |
0,85 : 1 |
| Final Drive Ratio |
3,62 : 1 |
| Drive Wheels |
RWD (Rear Wheel Drive) |
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| Handling, Suspension Geometry and Brakes |
| Steering Type |
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| Steering Turns (lock to lock) |
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| Turning Circle Diameter |
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| Suspension (front) |
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| Suspension (rear) |
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| Brakes (front/rear) |
VeDi/VeDi-S-ABS |
| Brake Disc Diameter (front) |
345 mm |
| Brake Disc Diameter (rear) |
328 mm |
| Wheels (front) |
8.0J x 18 EH2 IS42 LM |
| Wheels (rear) |
9.0J x 18 EH2 IS30 LM |
| Tyres (front) |
225/45 ZR 18 |
| Tyres (rear) |
255/40 ZR 18 |
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