Bruce,
Unfortunatly, every dealership is different.. Our TIP Price is the average of all the sales from the previous month in your state - They may be correct in saying that for a huge area such as Chicago - Have you thought of calling a dealer a few miles outside Chicago - Also, 2% under invoice is always a fantastic deal - Make sure that that does not include any incentives or rebates in that 2% under invoice. Another thing to consider is the TIP price may take into consideration incentives as well as sales price, so find out about the vehicle's current incentives.