| Tipo 4CTR |
| Years of construction 1931 - 1936 |
| Two-seater race car |
| 1.1-litre 4-cyl in-line |
| Two overhead camshafts with two valves per cylinder |
| Engine cubic capacity - 1088cc |
| Bore 65 mm x Stroke 82 mm |
| Compression ratio - 5.1:1 and 5.6:1 |
| Induction by Roots supercharger via Weber 48ASS carburettor |
| Power output - 90-115 bhp @ 5300-6000 rpm |
| Weight - 700 kg |
| Top speed - 150 kph |
| 6 models constructed (4CTR and 4CM 1100) |
| No cars exported to the UK |
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