Miller Motorcars JC9 is a one-off coachbuilt supercar unveiled by Miller Motorcars for its 50th Anniversary “Legends” celebration in Greenwich, Connecticut, held on May 30–31, 2026. The car is based on the Porsche Carrera GT and is fully constructed from carbon fiber. It retains a naturally aspirated V10 engine and a manual transmission, preserving the Carrera GT’s core mechanical layout.The JC9 is designed by Jason Castriota, whose earlier work…