Taken from redlinesgrandprix.com The real Chaparral 2G was the creation of designer/builder/driver Jim Hall. The 2G was one of an interesting lineage of Chaparral cars that Hall built and raced in the 1960's at various CanAm events. A unique feature of Hall's cars was a large hydraulic rear spoiler designed to provide better control through turns but less drag on the straightaways. The spoiler debuted on the Chaparral 2C and evolved through a number of variations on later cars.