The G8 Grand prix had 7 years in production - that is a long time for a single body style in today's market. Most car manufacturers carry styling cues across their car lines - DC has strong styling similarities in the Intrepid, Stratus and Neons, Ford had the Taurus and Tempo looking like the same car just different sizes. The Toyota Avalon and Camry are very similar in appearance. Ditto the Sentra, Altima and Maxima. Not identical of course, but as similar as the GP and GA are.

I agree that more mechanical changes would be good, but they are coming - change takes time and costs money, and with the recent changes in management at GM we should see something in the next five years. Until then the new GP is a good move to update the model, making it more competitive with current hot sellers from across the pond....