With discount outlets popping up as retail outposts everywhere, it's fitting that there’re used-car "supermarkets" among the bargains. The country’s largest used-car retailer gives you a written offer for your car whether you buy from them or not. If you do, you'll choose from an inventory subjected to a 125-point inspection, backed by a five-day, money-back guarantee. Maybe that's why Chronicle readers have chosen CarMax two years running.
