Once in his life, every guy should drive a 10,000-pound, 1,500-horsepower truck over a few innocent automobiles. The crush rush is normally reserved for pro gearheads, but for $499, monster-truck racer Denny Maerkisch of Terminator III Racing in Norwalk, Ohio, will give you a private lesson at his muddy arena near Cleveland. After a skull session, you'll don a flameproof jumpsuit and hoist yourself into Terminator III (below), a 15-foot-high Ford with a supercharged 500-cubic-inch engine that can be heard three miles away. Then it's off to the races, climaxed by a steel-smashing, windshield-shattering assault on a row of junk cars. How's it feel? "Heavy," says Maerkisch.