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Estonia 21M, 1986
| Manufacturer | Estonia |
| Model | 21M |
| Year of production | 1986 |
| Start of production | 1983 |
| End of production | 1987 |
| Body type |
monopost |
| Number of doors | 0 |
| Number of seats | 1 |
| Engine position |
mid |
| Drive wheel |
rear |
| Fuel |
petrol |
| Number of cylinders |
inline 4 |
| Cooling |
liquid |
| Capacity | 1294 ccm, 78.6 cu-in |
| Bore | 79.0 mm, 3.11 in |
| Stroke | 66.0 mm, 2.598 in |
| Compression ratio | 10.5:1 |
| Valve Gear |
OHC |
| Valves per cylinder | 2 |
| Fuel system |
carburator, 1 x |
| Aspiration |
normal |
| Max power [kW / PS / hp] |
92 / 125 / 123 at 8000 rpm |
| Max torque [Nm / ft-lb] |
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| Total power (hybrid) | |
| Total torque (hybrid) |
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| Gearbox | M5 |
| Gearbox (option) | |
| Wheelbase | 2400 mm, 94.5 in |
| Front track | 1490 mm, 58.7 in |
| Rear track | 1410 mm, 55.5 in |
| Length | 3900 mm, 153.5 in |
| Width | 1710 mm, 67.3 in |
| Height | 980 mm, 38.6 in |
| Weight | 460 kg, 1014 lb |
| Maximum speed |
240 km/h, 149 mph |
| 0-100 km/h | 4.5 s |
| Standing km | |
| Foto: Z.Patera Auta5P, Most Historic GP 2018 |
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