| Abarth 500 GT Coupé Zagato S1 |
| Engine | In-line two-cylinder |
| Displacement (bore*stroke) | 479 cm³ (66 mm * 70 mm) |
| Compression ratio | 8,6 : 1 (petrol) |
| Engine control | ohv |
| Valves | 2 per cylinder |
| Maximum torque | 34 Nm at 3000 rpm |
| Maximum power | 17 kW (23 HP) at 4.800 rpm |
| Transmission | Manual four-speed |
| Drive train | Rear engine, longitudinal, Rear drive |
| Wheelbase | 1.840 mm |
| Rear suspension | Independent suspension, coil springs |
| Brakes front | Drums |
| Brakes rear | Drums |
| Length | 3.220 mm |
| Width | 1.240 mm |
| Height | 1.120 mm |
| Kerb weight | 460 kg |
| Tank capacity | 20 liter |
| Maximum speed | 115 km/h |
| Year of manufacture | 1958 |