I'm surprised that they gave you the $1000 off for the GM card. I've used my GM card when buying my Z28's, but I was under the impression that I couldn't use it for the SSR and I cancelled my card. Have you had your card more than 2 years? I think that they have changed the way that they let you spend the money, but maybe they've grandfathered the older cards. I'd really be interested to find out if you really get the discount.
Yes they let me use $1500.00 on SS truck last may which was max and the dealer checked and informed me that they would only accept $1000.00 on the SSR. SSR has been paid for. My plate is SSR 2003. now all I need is an SSR. Hell I even used my GM card to pay 5k down.