Brian Chaffee, President of E-Muscle, a classic muscle car restoration business in Middlefield, Conn., looks over his latest restoration. Chaffee and the crew at E-Muscle have spent three years on a meticulous restoration of this historic car, a 1970 Plymouth Road Runner Superbird. The modified Superbird with the huge “wing” in back was used in 1972 to collect exhaust and particulate from other cars and jet airplanes for EPA testing.