The Willhire 24 Hour was an endurance race for production cars held at Snetterton Motor Racing Circuit in Norfolk, England between 1980 and 1994. Over the years, the race included both sports cars and saloon cars. Latterly, it was contested by competitors running in the FIA Group N specification National Saloon Car Cup. The race was run by the British Racing and Sports Car Club (BRSCC),[1] which was also responsible for the aforementioned series.[2]