Dodge Viper ACR Concept – Mopar is gearing up to hit the Strip in full force at the 2014 Specialty Equipment Market Association (SEMA) Show in Las Vegas, Nov. 4ā7, with a fleet of Mopar-modified vehicles and hundreds of existing and prototype Mopar products. Among the āMoparizedā vehicles on display will be the Dodge Viper ACR Concept, the ultimate hand-built American exotic supercar.