The Packard Twelve De Luxe Convertible Coupé is a rear wheel drive car, with its engine located in the front, and a 2 door convertible/cabriolet bodyshell.
It forms part of Packard's 1707 family of cars.
The Packard Twelve De Luxe Convertible Coupé's engine is a naturally aspirated petrol, 7.8 litre, side valve 67 degree V 12 cylinder with 2 valves per cylinder. It develops 175 bhp (177 PS/130 kW) of power at 3200 rpm.
The engine delivers its power through to the wheels via a 3 speed manual gearbox.
Claimed weight at the kerb is 2513 kg.
Full specs
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| bodywork | |||
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| Body type | 2/4 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3413 mm | 134.4 inches | |
| Track/tread (front) | 1530 mm | 60.2 inches | |
| Track/tread (rear) | 1549 mm | 61 inches | |
| Length | 5666 mm | 223.1 inches | |
| Width | 1899 mm | 74.8 inches | |
| Height | 1713 mm | 67.4 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.66 | ||
| Kerb weight | 2513 kg | 5540 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 7756 cc (473.3 cu in) |
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| Bore × Stroke | 87.31 × 107.95 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 | 6.3:1 | ||
| Fuel system | 1 Stromberg carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | 4 | ||
| Engine coolant | Water | ||
| Unitary capacity | 646.33 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 70.61 PS/tonne (1000 kg) 0.07 PS/kg 51.93 kW/tonne (1000 kg) 0.05 kW/kg 69.64 bhp/tonne (1000 kg) 0.07 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 19.26 kg/kW 32.17 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 | 16 x 8.25 | ||
| Tyres rear | 16 x 8.25 | ||
| Brakes F/R | Dr/Dr | ||
| 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 | 342320 | ||
| Production total | |||
| Model code | 1239 | ||
| Model family | 1707 | ||
| RAC rating | 56.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1939 Packard Twelve De Luxe Convertible Coupé added 2013-06-26. Last modified 2020-02-02. |
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