Hey GM tried to unload Hummer, its not there fault that no other company is stupid enough to buy the name to that crap.
Actually, this isn't the first one of their companies that they've sold off. Ford sold Jag and Land Rover to Tata back at the beginning of the year. Funny thing about that deal was the fact that they sold both companies for less than they originally bought them for. If I remember correctly it was for less than $3Billion.