Motori Moderni
Zakspeed's own turbo engine, reportedly based on a Ford block, produced approximately in race trim and for qualifying during the 1985 season. This generally put them behind the leading engines of BMW, Ferrari, Renault, Honda and the Porsche built TAG which were producing around and sometimes over in qualifying while having around 900+ bhp for races. However the 1500/4 did develop more power than the straight-4 Hart turbo, the Motori Moderni V6 and the Alfa Romeo 890T V8.