The 250 Convertible is a passenger car from Packard, with rear wheel drive, a front mounted engine and a 2 door convertible/cabriolet body style.
The 250 Convertible is part of Packard's 2401 range of cars.
The 5.4 litre engine is a naturally aspirated, side valve, 8 cylinder unit that develops 155 bhp (157 PS/116 kW) of power at 3600 rpm.
A 2 speed automatic 'box transfers the power to the wheels.
It weighs a claimed 1814 kg at the kerb.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3099 mm | 122 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | 5404 mm | 212.8 inches | |
| Width | |||
| Height | |||
| Ground clearance | |||
| length:wheelbase ratio | 1.74 | ||
| Kerb weight | 1814 kg | 3999 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Packard | ||
| Engine code | |||
| Cylinders | Straight 8 | ||
| Capacity | 5.4 litre 5363 cc (327.27 cu in) |
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| Bore × Stroke | 88.9 × 108 mm
3.5 × 4.25 in |
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| Bore/stroke ratio | 0.82 | ||
| Valve gear | side valve (SV)
2 valves per cylinder 16 valves in total |
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| maximum power output | 157 PS (155 bhp) (116 kW) at 3600 rpm |
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| maximum torque | |||
| Specific output | 21.6 kW/litre 29.3 ps/litre 28.9 bhp/litre 0.47 bhp/cu in |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 7.8:1 | ||
| Fuel system | 1 carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 670.38 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | Higher is better 86.63 PS/tonne (1000 kg) 0.09 PS/kg 63.72 kW/tonne (1000 kg) 0.06 kW/kg 85.45 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 15.69 kg/kW 26.22 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 | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 15 x 8.00 | ||
| Tyres rear | 15 x 8.00 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 2 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.54 | ||
| general | |||
| Carfolio.com ID | 618233 | ||
| Production total | |||
| Model code | 2469 | ||
| Model family | 2401 | ||
| RAC rating | 39.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1951 Packard 250 Convertible Ultramatic added 2019-12-01. Last modified 2020-03-16. |
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