Opel 12ST, Engine
| Engine capacity | 1,196 cm³ |
| Maximum power (range), hp | 54 |
| Maximum torque, N*m (kg*m) at rpm. | 84 (9) / 3600 |
| Fuel used | Gasoline AI-92 |
| Fuel consumption, l/100 km | 6.9 |
| Engine type | In-line, 4-cylinder |
| Additional engine information | Carburetor |
| Maximum power, hp (kW) at rpm | 54 (40) / 5600 |
| Compression Ratio (Range) | 9 |
| Cylinder diameter (range), mm | 79 |
| Piston stroke (range), mm | 61 |
| Valve drive | OHC |
| Number of valves per cylinder (range) | 2 |