Opel gasoline straight-4 1.2 L B 12 XEL engines

Opel gasoline straight-4 1.2 L B 12 XEL 68 HP at 5600 RPM engine

It's an 1229 cc (1.08 UK qt.) internal combustion reciprocating Inline 4 engine. It has bore/stroke ratio of 73.4 mm × 72.6 mm (2.89 in × 2.86 in). This engine was rated 51 kW (68.39 hp) at 5600 rpm.