Considered the flagship vehicle for Mercedes, the S500 really is everything you want and nothing you don't from a luxury sedan. It is a long wheelbase, 4-door sedan with a powerful 5.0L V8 engine, and could come in rear-wheel or all-wheel drive. There were a few years where it was offered as a coupe, but most were sedans. Standard on the S500 are multi-zone climate controls, heated seats, park-assist technology, self-closing doors and trunk lid, and air-ride suspension for later models. Expensive to buy and expensive to repair, but Mercedes-Benz S500 parts are still available online at much lower prices than at dealerships.