HPI Hellfire 1/8 Nitro Truck RC Car Action More RC Tech, Gadgets, News & Info Comments Whoa, didn’t see this one coming! The Savage is still part of the HPI lineup, but now there’s a racier choice from HPI: the Hellfire. See more pics and get all the info at the Radio Control Zone. Never miss an issue of RC Car Action! Subscribe today with a Digital Edition subscription or Print + Digital combo!