It was a particularly good company who made lots of rebadged GM cars, such as the G8, the G3, the Torrent, the Vibe, the Solstice and the Grand Prix. It’d be interesting to see how they went from big to gone.
By the way, they were one of three companies that General Motors, their parent company, discontinued after the damage of the 2009 great recession (the others are Saturn and Hummer)