GMID vs GM Supplier Discount

[walc]

Originally posted by HoKC:
NOT TRUE!!!

The GM Supplier price is preprinted on all invoices and is higher than the invoice only when that dealer does not have any advertising. Most dealers have advertising built in from the factory because the factory kicks in a certain amount of matching funds. The end result is that the invoice price on the same vehicle can vary slightly between dealers if they have a different ad program set up. MOST (but not all) dealers use about 3% advertising, in that case the GM Supplier & GMID will be below dealer invoice. It will be the same regardless of which dealer you are at and what they have for advertising.

What isn't true?
Look at the GM Supplier/GID prices at link and you will see they are about 1.75% over factory invoice.