They have similarities with some of the more sophisticated mini-stock divisions in the USA. The World Championship race for the National Hot Rods is staged at the annual spedeweekend at Foxhall Stadium in Ipswich, which is traditionally held during the first weekend of July each year.
These divisions have similarities to some more advanced mini-stock categories in the USA. The World Championship race for National Hot Rods takes place every year at Foxhall Stadium as part of Ipswich's annual spedeweekend, usually occurring during the first week of July.