Mopar or no car? This sinister 1971 pro-touring Plymouth Barracuda was built by RKM Performance Center. It’s powered by a 575HP 500ci Indy Cylinder Head V8 mated to a Tremec TKO600 5-speed manual transmission and rides on Detroit Speed suspension, Baer brakes, 235/35ZR19 & 345/30ZR20 Michelin Pilot Super Sport tires, and 19×8.5/20×12 Forgeline forged GZ3 …