3.8L V6 SMPI 12V Gasoline and Local trade. Theres no substitute for a Pontiac! In a class by itself! Confused about which vehicle to buy? Well look no further than this great-looking 1998 Pontiac Bonneville. Its the combination of advanced design and precision engineering that gives the Pontiac Bonneville the pinned-to-your-seat acceleration. Over 200 vehicles in stock, Prices posted on every windshield.