The fifth generation of Pontiac Bonneville was introduced for the 1971 model year. The fifth generation of Pontiac Bonneville saw the model moved down from its position as the Pontiac flagship, with the introduction of the Pontiac Grand Ville. The fifth generation Bonneville was available as a sedan or coupe, and was fitted with a 6.6L or 7.5L V8 engine. The fifth generation Bonneville was replaced by the Sixth Generation Pontiac Bonneville.