MaX5 Racing was formed in the summer of 2003, running a successful race series in 2004, and gaining championship status for the 2005 season. The MaX5 Racing championship is based upon the original MX5 Championship run by Mazda in the UK in 1990/91 & the American spec Miata MX5 Championship, which is hugely successful and is the fastest growing form of motorsport in the U.S. .