Supplier pricing typically is 100-200 below invoice price. It's a good deal, but just be aware that trade in value will be wholesale because of the profit margin being given away with supplier price. You will still be eligable for most rebates and incentives with that pricing.
Again, you won't get the discount off msrp, and get an inflated trade value. Just watch the bottom line, as with any car deal. That is the most important number...not how you got there. :thumbsup:
I probably should add that supplier price is asigned to each vehicle by GM, and is not negotiable. It is printed on the vehicle invoice, and that number is what the dealer should sell it for, minus rebates, trade, etc. If you ask, the dealer will probably show the invoice to you, and show the supplier price printed...I know I do with my deals.