Johnny Böhmer is the Founder of JBR Proving Grounds, a company which provides guidelines, consulting, and testing in accordance with numerous testing facilities throughout the United States. Past Cars Yeah guest Richard Rawlings, of Gas Monkey garage fame, sponsored and partnered with Johnny on his "BADD GT' project and they cemented its place as the Fastest Street Legal car in the world. They reached a stunning 310.8 MPH.