1978-1980 Chrysler Scorpion,  Models GE (2 litre Astron I engine) & GH (2.6 litre Astron I engine), Round butt, 4 headlights, some minor differences between the GE & GH, like different grills.

1980-1981 Mitsubishi Scorpion, Model GJ  (2.6 litre Astron II), square butt and 4 headlights

1981-1983 Mitsubishi Scorpion, Model GK, (2.6 litre Astron II), Square butt and 2 headlights

1983-1987 Mitsubishi scorpion, Model GL, (2.6 litre Astron II But runs on unleaded fuel),Square butt and 2 headlights