The Ginetta GT4 Supercup is a one-make racing, Sports car racing series based in the United Kingdom, using identical Ginetta G50 and G55 sports cars.

For the 2014 season, the championship was rebranded as the Ginetta GT4 Supercup, with both the G50 and G55 cars running in a single, performance balanced class.

[1] The regulations include sealed engines, gearboxes and differentials.

Home to a 3.5 litre V6 engine and 300 BHP, it has since become a successful GT4 car.

The grid for the first race is determined by a 20-minute qualifying session.