About the GMA T.50 In the 1970s to 1980s, Gordon Murray gained fame as an inspired designer who developed a string of innovative racing cars, and the GMA T.50 is the first car of Gordon Murray Automotive, which he established in 2017. Its lightness is accomplished by liberal use of carbon fiber while its streamlined form features few aerodynamic devices. Power is provided by a midship mounted, 3.9-liter V12 engine capable of 663PS. The interior has a central driver seat with passenger seats positioned either side, diagonally backward of the driver.