Opel gasoline straight-4 1.2 L 12 NV engines

Opel gasoline straight-4 1.2 L 12 NV 51 HP at 5800 RPM, 86 N⋅m at 2600 RPM engine

It's an 1196 cc (1.05 UK qt.) internal combustion reciprocating Inline 4 engine. It has bore/stroke ratio of 77.8 mm × 62.9 mm (3.06 in × 2.48 in). This engine was rated 38 kW (50.96 hp) at 5800 rpm and 86 N⋅m (63.43 lbf⋅ft) of torque at 2600 rpm.