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ACMA Vespa 400, 1959
| Manufacturer | ACMA |
| Model | Vespa 400 |
| Year of production | 1959 |
| Start of production | 1957 |
| End of production | 1961 |
| Body type |
semi convertible |
| Number of doors | 2 |
| Number of seats | 2+2 |
| Engine position |
rear |
| Drive wheel |
rear |
| Fuel |
petrol |
| Number of cylinders |
inline 2 |
| Cooling |
air |
| Capacity | 393 ccm, 23.9 cu-in |
| Bore | 63.0 mm, 2.48 in |
| Stroke | 63.0 mm, 2.48 in |
| Compression ratio | 6.6:1 |
| Valve Gear |
two-stroke |
| Valves per cylinder | |
| Fuel system |
carburator, 1 x Solex |
| Aspiration |
normal |
| Max power [kW / PS / hp] |
10 / 14 / 14 at 4350 rpm |
| Max torque [Nm / ft-lb] |
27 / 20 at 2200 rpm |
| Total power (hybrid) | |
| Total torque (hybrid) |
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| Gearbox | M3 |
| Gearbox (option) | |
| Wheelbase | 1693 mm, 66.7 in |
| Front track | 1100 mm, 43.3 in |
| Rear track | 1100 mm, 43.3 in |
| Length | 2854 mm, 112.4 in |
| Width | 1270 mm, 50 in |
| Height | 1250 mm, 49.2 in |
| Weight | 360 kg, 794 lb |
| Maximum speed |
85 km/h, 53 mph |
| 0-100 km/h | |
| Standing km | |
| Foto: Z.Patera Auta5P, Fahrzeugmuseum Bäretswil 2020 |
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