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Rolls-Royce 20/25 HP Hooper, 1930
| Manufacturer | Rolls-Royce |
| Model | 20/25 HP Hooper |
| Year of production | 1930 |
| Start of production | 1930 |
| End of production | 1932 |
| Body type |
sedan |
| Number of doors | 4 |
| Number of seats | 7 |
| Engine position |
front |
| Drive wheel |
rear |
| Fuel |
petrol |
| Number of cylinders |
inline 6 |
| Cooling |
liquid |
| Capacity | 3669 ccm, 222.8 cu-in |
| Bore | 82.6 mm, 3.252 in |
| Stroke | 114.3 mm, 4.5 in |
| Compression ratio | 5.3:1 |
| Valve Gear |
OHV |
| Valves per cylinder | 2 |
| Fuel system |
carburator |
| Aspiration |
normal |
| Max power [kW / PS / hp] |
55 / 75 / 74 at 3000 rpm |
| Max torque [Nm / ft-lb] |
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| Total power (hybrid) | |
| Total torque (hybrid) |
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| Gearbox | M4 |
| Gearbox (option) | |
| Wheelbase | 3353 mm, 132 in |
| Front track | 1430 mm, 56.3 in |
| Rear track | 1430 mm, 56.3 in |
| Length | 4650 mm, 183.1 in |
| Width | 1765 mm, 69.5 in |
| Height | |
| Weight | 1980 kg, 4365 lb |
| Maximum speed |
120 km/h, 75 mph |
| 0-100 km/h | |
| Standing km | |
| Foto: Z.Patera Auta5P, Technik Museum Speyer 2016 |
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