Muscle car buffs have been arguing for years about which muscle car brand is the best, but money talks and right now Dodge muscle cars are fetching the highest prices at auction. Take, for instance, the 1970 Dodge Challenger R/T, which just happens to be one of the most highly desired muscle cars of all time. Add in a little Plum Crazy paint color and the fact that this particular muscle car was well loved and taken care of over the years and you have a recipe for some serious cash. Your opportunity is now! A 1970 Challenger R/T in the oh-so-popular Plum Crazy paint color is crossing the auction block next month at Mecum Chattanooga.