The Roadster T1 is a rear wheel drive convertible/cabriolet car with a mid mounted engine, manufactured by Treser.
The power is produced by a naturally aspirated engine of 1.8 litre capacity. This unit features double overhead camshaft valve gear, 4 cylinder layout, and 4 valves per cylinder. It develops 128 bhp (130 PS/95 kW) of power at 5800 rpm, and maximum torque of 172 N·m (127 lb·ft/17.5 kgm) at 4300 rpm.
The power is transmitted to the wheels via a 5 speed manual gearbox.
The quoted weight at the kerb is 1030 kg.
Maximum stated speed is 209 km/h (130 mph), stated fuel consumption figures are 6.8/7.9/11.7 l/100 km 90 km/h / 120 km/h / urban ECE.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2500 mm | 98.4 inches | |
| Track/tread (front) | 1455 mm | 57.3 inches | |
| Track/tread (rear) | 1490 mm | 58.7 inches | |
| Length | 4045 mm | 159.3 inches | |
| Width | 1730 mm | 68.1 inches | |
| Height | 1250 mm | 49.2 inches | |
| Ground clearance | 125 mm | 4.9 inches | |
| length:wheelbase ratio | 1.62 | ||
| Kerb weight | 1030 kg | 2271 lb | |
| Weight distribution | |||
| fuel tank capacity | 72 litres | 15.8 [19] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | 0.34 | ||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Volkswagen | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 1.8 litre 1781 cc (108.683 cu in) |
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| Bore × Stroke | 81 × 86.4 mm
3.19 × 3.4 in |
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| Bore/stroke ratio | 0.94 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 16 valves in total |
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| maximum power output (DIN) |
130 PS (128 bhp) (95 kW) at 5800 rpm |
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| maximum torque (DIN) |
172 Nm (127 ft·lb) (17.5 kgm) at 4300 rpm |
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| Specific output (DIN) |
53.6 kW/litre 72.9 ps/litre 71.9 bhp/litre 1.18 bhp/cu in |
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| Specific torque (DIN) |
96.57 Nm/litre
1.17 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10:1 | ||
| Fuel system | Bosch KE-Jetronic fuel injection | ||
| bmep (brake mean effective pressure) | 1213.6 kPa (176 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 445.25 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 8.5 s | ||
| Acceleration 0-100km/h | 8.7 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | 28.7 s | ||
| Maximum speed | 209 km/h (130 mph) | ||
| Power-to-weight ratio | Higher is better 126 PS/tonne (1000 kg) 0.13 PS/kg 92.67 kW/tonne (1000 kg) 0.09 kW/kg 124.27 bhp/tonne (1000 kg) 0.12 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 10.79 kg/kW 18.03 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 6.8/7.9/11.7 l/100 km 90 km/h / 120 km/h / urban ECE | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | mid | ||
| Engine layout | transverse | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | power assisted rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 195 TR 415 | ||
| Wheel size rear | 195 TR 415 | ||
| Tyres front | 220/45 VR 415 | ||
| Tyres rear | 230/45 VR 415 | ||
| Brakes F/R | VeDi/Di-S | ||
| Front brake diameter | 256 mm | ||
| Rear brake diameter | 239 mm | ||
| Braked area | |||
| Gearbox | 5 speed manual | ||
| Top gear ratio | 0.91 | ||
| Final drive ratio | 3.67 | ||
| general | |||
| Carfolio.com ID | 40304 | ||
| Production total | |||
| Model code | |||
| RAC rating | 16.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1987 Treser Roadster T1 added before December 1995. Last modified 2013-02-28. |
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