OK, so the paint is nice and shiny, the interior smells like pine, the tires are clean and glistening and engine doesn’t knock or wheeze but what’s the real cost of that used car you’re looking at? The real cost of a used car isn’t just the cash you fork over to the seller. It’s more than the additional cost of taxes and licensing. The true cost of a used car includes all the repairs you’ll do in the months and, hopefully, years ahead, as well as the level of frustration you may experience in the process. Denny Norton, at Performance Unlimited, 5415 Austin Court, Ringwood, understands the potential pratfalls of purchasing a used car. That’s why, along with providing superior auto repair and maintenance services, he also offers a used-car checkup to help used-car buyers to know what they’re getting into beyond the Simonized finish of the vehicle. “While there are some folks out there selling used cars who will try to hide issues that will cause trouble later, even with a reputable sell...