Ka & Kb Post-Vintage Thoroughbred Cars (1931-1940)

The group is intended to represent the PreWorld War two and early post-World War two periods, which includes the classically engineered factory racing and sports cars, local specials constructed on a "one-off' basis, using production car components from the pre-war period and factory constructed vehicles that were modified with production car engines from pre-war period. The group is split into two sub-classifications, Ka and Kb.

Group Ka: Vehicles eligible for this group will be racing and sports cars with a competition history established between 1 January, 1931 and 31 December, 1949, but constructed from major components manufactured prior to the end of 1940. Consideration will also be given to individual sports cars that do not have an established competition history but are of a type that appeared in competition prior to the end of 1940.

Group Kb: One-off "special" type vehicles constructed at any time using major components (ie, using engine, chassis, transmission, axles and suspension) manufactured prior to the end of 1945. Such vehicles must be similar in detailed specification and appearance to vehicles, which actually appeared in competition prior to the end of 1940. Vehicles which precisely replicate a genuine original historic racing car will however be eligible only within the provisions of the regulations relating to "recreations"