Take a tip from the Marlan Davis school of vacations: rent. It's unusual that we'd advise actually paying to spend time in a wrong-wheel-drive econobox-or worse, the Chuck Schifsky signature-series minivan-but Marlan's done the math and proven a rental is a good bargain if you're out for extended road-trip fun. At least once in your life, you have to spend the summer touring the country. A rental gets better mileage than your big-block whatever, has air conditioning, and-sad to say-reduces the chances of a breakage adventure. You can dirt-road 'em at will, coat the floorboards with Snoballs wrappers, park them at the Bates Motel without worry, and bid good riddance at road's end.