Pontiac Montana SV6 is a minivan that was produced by General Motors from 2005 to 2009. The Pontiac Montana SV6 was a slightly larger four-door version of the standard Montana van and was marketed as a more family-oriented vehicle. It had more standard features, better trim levels, more cargo room, and an optional V6 engine. The Montana SV6 was designed to compete with similar models from other major automakers, such as the Dodge Grand Caravan and Toyota Sienna.