Stewart is retired as of this year. He's had co-ownership of Stewart-Haas racing for a few years and that suits him well. He hasn't raced the Home Depot car for about ten years, he was racing other sponsors for his own team for a while. I'm sure he's happy; he won three championships and a ton of races, although he hadn't been that competitive the last couple seasons. More than you really need to know, eh? :)