The Packard Twelve Cabriolet is a rear wheel drive motor vehicle, with its engine located in the front, and a convertible/cabriolet body.
The Packard Twelve Cabriolet is one of the 1407 range of cars from Packard.
The power is produced by a naturally aspirated engine of 7.8 litre capacity. This unit features side valve valve gear, a 67 degree V 12 cylinder layout, and 2 valves per cylinder. It has an output of 175 bhp (177 PS/130 kW) of power at 3200 rpm.
The engine transfers its power through to the wheels via a 3 speed manual transmission.
Its claimed weight at the kerb is 2676 kg.
Full specs
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| bodywork | |||
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| Body type | 6/7 seater convertible/cabriolet | ||
| Number of doors | |||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3537 mm | 139.3 inches | |
| Track/tread (front) | 1524 mm | 60 inches | |
| Track/tread (rear) | 1549 mm | 61 inches | |
| Length | 5544 mm | 218.3 inches | |
| Width | 1880 mm | 74 inches | |
| Height | 1803 mm | 71 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.57 | ||
| Kerb weight | 2676 kg | 5900 lb | |
| Weight distribution | |||
| fuel tank capacity | 113.7 litres | 25 [30] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Packard | ||
| Engine code | |||
| Cylinders | V 12 in 67° vee | ||
| Capacity | 7.8 litre 7758 cc (473.422 cu in) |
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| Bore × Stroke | 87.3 × 108 mm
3.44 × 4.25 in |
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| Bore/stroke ratio | 0.81 | ||
| Valve gear | side valve (SV)
2 valves per cylinder 24 valves in total |
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| maximum power output | 177 PS (175 bhp) (130 kW) at 3200 rpm |
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| maximum torque | |||
| Specific output | 16.8 kW/litre 22.9 ps/litre 22.6 bhp/litre 0.37 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 6.4:1 | ||
| Fuel system | 1 Packard Stromberg carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | 4 | ||
| Engine coolant | Water | ||
| Unitary capacity | 646.5 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 66.31 PS/tonne (1000 kg) 0.07 PS/kg 48.77 kW/tonne (1000 kg) 0.05 kW/kg 65.4 bhp/tonne (1000 kg) 0.07 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 20.51 kg/kW 34.25 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 | 5.000 | ||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 7.50 x 17 | ||
| Tyres rear | 7.50 x 17 | ||
| Brakes F/R | Dr/Dr-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.41 | ||
| general | |||
| Carfolio.com ID | 449306 | ||
| Production total | |||
| Model code | |||
| Model family | 1407 | ||
| RAC rating | 56.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1935 Packard Twelve Cabriolet added 2015-12-30. Last modified 2020-03-16. |
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