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Bour-Davis 21S Touring, 1921
| Manufacturer | Bour-Davis |
| Model | 21S Touring |
| Year of production | 1921 |
| Start of production | 1921 |
| End of production | 1921 |
| Body type |
faeton |
| Number of doors | 4 |
| Number of seats | 5-7 |
| Engine position |
front |
| Drive wheel |
rear |
| Fuel |
petrol |
| Number of cylinders |
inline 6 |
| Cooling |
liquid |
| Capacity | 4966 ccm, 301.6 cu-in |
| Bore | 88.9 mm, 3.5 in |
| Stroke | 133.4 mm, 5.252 in |
| Compression ratio | |
| Valve Gear |
SV |
| Valves per cylinder | 2 |
| Fuel system |
carburator, 1 x Zenith |
| Aspiration |
normal |
| Max power [kW / PS / hp] |
41 / 56 / 55 at 2000 rpm |
| Max torque [Nm / ft-lb] |
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| Total power (hybrid) | |
| Total torque (hybrid) |
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| Gearbox | M3 |
| Gearbox (option) | |
| Wheelbase | 3200 mm, 126 in |
| Front track | 1422 mm, 56 in |
| Rear track | 1422 mm, 56 in |
| Length | |
| Width | |
| Height | |
| Weight | 1450 kg, 3197 lb |
| Maximum speed |
110 km/h, 68 mph |
| 0-100 km/h | |
| Standing km | |
| Foto: archiv Auta5P |
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