The engine was a twin overhead camshaft per bank, four valves per cylinder, 3.4 litre V8 unit, initially with factory type reference 119D, then 119 G, and finally 119 G040 when fitted with catalytic converters. It had a total cubic capacity of 3405cc, and a bore and stroke of 85mm x 75mm, with spark plugs between the camshafts, fitted with a Bosch Motronic M2.5 combined fuel injection and ignition system, which was upgraded to the M2.7 version during the production run. At the rear of the mid mounted engine was a transverse five speed plus reverse all synchromesh gearbox and transaxle unit.