Buying a 2011 Hyundai Tucson, and saving $2500 off of MSRP.
It's difficult to say just how much I saved from the full retail price as I had a trade-in and we were always bargaining at both ends. Knowing the dealer cost certainly helped as did advising them of a future appt with the dealer that CarCost recommended.
I chose the vehicle because we had an '05 Tucson that we liked. Hyundai had mailed us a flyer which suggested great deals (financial, incentives and 'higher than market value' for our trade-in). We were very disappointed to find none, or very little, of this was true for the vehicle we wanted. In the end we had to be very persistent and almost walked out before we received an agreeable offer. We chose the dealer because they were located near-by and we had bought our '05 there.