2005 Pontiac Bonneville
The 2005 Pontiac Bonneville is a 4-door, 5-seat Sedan, available in 3 trims, ranging from the SE to the GXP. Upon introduction, the $27,965 SE is equipped with a standard 3.8L, 6-cylinder, engine that achieves 20-mpg in the city and 29-mpg on the highway. an Automatic transmission is standard. The $35,585 GXP is equipped with a standard 4.6L, 8-cylinder, engine that achieves 17-mpg in the city and 24-mpg on the highway. an Automatic transmission is standard.