After being turned down by David McDavid Acura in Plano, since they would not even negotiate the price with us without us showing them the cash first, we left and drove over 60 miles to Arlington to go to Vandergriff.
We were greeted with courtesy, and the buying process was very easy. We told them what we were looking for, we told them we drove a long way, the sales guy went back to the manager, came back with an OK on the price, we paid, and drove the car home.
Easy, no hassle car buying experience. Highly recommended!