The Ginetta G55 is a specialist sports car, which has been built by Ginetta Cars since 2011. It is built to the FIA GT3 regulations, and the cars are raced in a one-make series; the Ginetta GT Supercup. In addition to this, they are also used in the GT3 class of competitions such as the British GT Championship. It was an evolutionary update of the Ginetta G50, which is a GT4-class car.