Powered by a 3.9 litre V6 engine the GTP (later GXP) was the top of the range Pontiac G6 Convertible. The engine used variable valve timing technology to increase the power output. It also had stability control and the four-speed automatic transmission as standard. Later models had an upgraded six-speed transmission.
Based on the Pontiac G6 mid-size sedan which replaced the long-standing Grand Am, the convertible provides occupants with ample space for roof-down cursing. Under the two piece folding steel roof is a spacious, well equipped cabin which will seat four adults in comfort.
Styling is restrained and for a car targeting the US market but was updated in 2008 to be more aggressive. The ride is reasonably taut but hardly the performance car that the marketing people would have you think.