In my opinion, the 2011 GT is the better value. If you get a manual with 3.73 rear end, the stock performance will not be that much slower than the GT 500. Also, the 2011 GT handles better than the 2010 GT 500. I hear the handling on the 2011 GT 500 is improved, but I haven't driven one, so I can't comment on that. I can on the 2010 GT 500. I wasn't impressed for the money. At least not enough to warrant getting one over the 2011 GT.