Thinking of buying a brand new 2007 H3 Hummer and thinking of applying for the card and paying it using the card, planning to pay for the car cash (credit card). I saw on the website that they give you 3% back and that is why I am thinking of buying it using this credit card. They offer 0apr or 6grand back, Im probably going for the 6grand back. Anyone has experience with buying a GM car with this card?