Rock crawlers are the new hotness, and some of the best radio control cars out there. They're not as fast as some of the top off-road buggies, but they're really not supposed to be: they're about ...

Indoor and small-scale rock crawling have taken the radio-controlled (RC) world by storm, and after a long bout of few models in the space, Traxxas finally stepped up and launched the TRX-4M.