I was in the market to buy a car for my daughter. A friend of mine referred to ChampCars. The process was simple. I told them what I wanted and how much I wanted to spend. They would actually send me screen shots and descriptions of the cars that fit my criteria. And, after a little searching, found the car (truck actually). My daughter loves it and I saved a lot of money, let alone the time and energy to car shop.
Thanks ChampCars!