Sounds like a tv ad, but did you all know that GM offers a credit union discount to existing or new members regardless of where you finance? All G8s are included. Apparently even GXP, but list was last updated online in December so I'd reserve that statement until a dealer verifies. Dealer participation is voluntary, and not all will, but the meat of the program is "Supplier Pricing" for all members of a credit union on stock or ordered vehicles. Program is stackable with either customer cash or low rate GMAC financing and may even be compatible with other incentives (dealer cash, loyalty bonus, targeted lease incentive) https://www.exclusivegmoffer.com/ip-gmpop/initPop.do?program=cud So, if you are not a member of a CU what's the most it'll cost you to become one, maybe a C-note deposit in a federally insured account? Nothing to lose and much to gain.