However, what’s under the bonnet isn’t the only thing to consider when looking at the Pontiac G8.  It also features a great interior, something many previous Pontiac models did not.  Unlike its ancestors, the G8’s interior is made out of top quality materials, has a layout that is intuitive and well-planned out, and looks very sophisticated.  Nevertheless, it does have its downsides, such as its less than stellar mileage.