I am new to this forum and looking to do a GMAC lease on a new '04. Using the GMAC lease calculator if I can get a new '04 for $29000.00 and put down $3000.00 + 1st. and security on a 12000 mi. 24mo. lease the payment will be $298.19 a mo. This calculator worked almost to the penny on my '04 GTO, but a dealer in Pa. told me the payments would be almost double on the '04 SSR. Any thoughts on this? I am sure I put the correct figures in the calculator.