The SM 4.1 Coupé is an automobile from Sta Matilde, with rear wheel drive, a front located engine and a 2 door coupé body style.
The 4.1 litre engine is a naturally aspirated, overhead valve, 6 cylinder that has an output of 168 bhp (170 PS/125 kW) of power at 4800 rpm, and maximum torque of 319 N·m (235 lb·ft/32.5 kgm) at 2600 rpm.
A 4 speed manual 'box transfers the power to the driven wheels.
The Sta Matilde SM 4.1 Coupé weighs a quoted 1200 kg at the kerb.
The Sta Matilde SM 4.1 Coupé is said to be able to attain a top speed of 200 km/h (124 mph).
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2420 mm | 95.3 inches | |
| Track/tread (front) | 1410 mm | 55.5 inches | |
| Track/tread (rear) | 1410 mm | 55.5 inches | |
| Length | 4180 mm | 164.6 inches | |
| Width | 1690 mm | 66.5 inches | |
| Height | 1280 mm | 50.4 inches | |
| Ground clearance | 220 mm | 8.7 inches | |
| length:wheelbase ratio | 1.73 | ||
| Kerb weight | 1200 kg | 2646 lb | |
| Weight distribution | |||
| fuel tank capacity | 65 litres | 14.3 [17.2] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | |||
| Cylinders | Straight 6 | ||
| Capacity | 4.1 litre 4093 cc (249.77 cu in) |
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| Bore × Stroke | 98.3 × 89.7 mm
3.87 × 3.53 in |
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| Bore/stroke ratio | 1.1 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 12 valves in total |
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| maximum power output (SAE) |
170 PS (168 bhp) (125 kW) at 4800 rpm |
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| maximum torque (SAE) |
319 Nm (235 ft·lb) (32.5 kgm) at 2600 rpm |
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| Specific output (SAE) |
30.6 kW/litre 41.6 ps/litre 41 bhp/litre 0.67 bhp/cu in |
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| Specific torque (SAE) |
77.94 Nm/litre
0.94 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 7.8:1 | ||
| Fuel system | 1 carb | ||
| bmep (brake mean effective pressure) | 979.4 kPa (142 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 7 | ||
| Engine coolant | Water | ||
| Unitary capacity | 682.17 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 10 s | ||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 200 km/h (124 mph) | ||
| Power-to-weight ratio | Higher is better 141.95 PS/tonne (1000 kg) 0.14 PS/kg 104.4 kW/tonne (1000 kg) 0.1 kW/kg 140 bhp/tonne (1000 kg) 0.14 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 9.58 kg/kW 16 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | |||
| 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 | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | |||
| Turning circle | 10.50 m | ||
| Front suspension | I.W.LongTB.CS.ARB. | ||
| Rear suspension | LA.TL. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 215/60 HR 15 | ||
| Tyres rear | 215/60 HR 15 | ||
| Brakes F/R | Di/Di-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.81 | ||
| general | |||
| Carfolio.com ID | 98318 | ||
| Production total | |||
| Model code | |||
| RAC rating | 35.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1985 Sta Matilde SM 4.1 Coupé added 2002-08-14. Last modified 2013-02-28. |
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