Full 1990 Pontiac Grand Prix Review
What's New for 1990
Sedan debuts, in LE and STE trim. STE includes remote keyless entry. Turbo coupe becomes regular production model. 2.8-liter V6 dumped in favor of 3.1-liter V6. A Quad 4 engine is available for the first time, and is standard on LE. STE sedan and SE coupe get smoother V6 power.