Petrol | ||||
| 3.8 Buick LD5 V6 | 110 hp / 81kW | Rear Wheel Drive | 1979-1983 | |
| 4.1 Buick LC4 V6 | 125 hp / 92kW | Rear Wheel Drive | 1979-1982 | |
| 4.1 Buick LC4 V6 | 125 hp / 92kW | Rear Wheel Drive | 1980-1983 | |
| 4.9 Pontiac 301 V8 Small-Block | 140 hp / 103kW | Rear Wheel Drive | 1979-1980 | |
| 5.0 Oldsmobile LV2 Small-Block V8 | 140 hp / 103kW | Rear Wheel Drive | 1982-1983 | |
| 5.0 Oldsmobile LV2 Small-Block V8 | 150 hp / 110kW | Rear Wheel Drive | 1980-1982 | |
| 5.7 Buick 350 Small-Block V8 | 155 hp / 114kW | Rear Wheel Drive | 1979-1980 | |
| 5.7 Buick 350 Small-Block V8 | 160 hp / 118kW | Rear Wheel Drive | 1979-1980 | |
| 3.8 Buick LD5 V6 4-bbl. Turbo | 170 hp / 125kW | Rear Wheel Drive | 1979-1980 | |
Diesel | ||||
| 5.7 Oldsmobile LF9 V8 | 105 hp / 77kW | Rear Wheel Drive | 1980-1983 | |
| 5.7 Oldsmobile LF9 V8 | 105 hp / 77kW | Rear Wheel Drive | 1982-1983 | |