Taken from the official site:
Toyo Tires Racing Saloons
With the simple aim of providing low cost, competitive club racing for pre-1994 saloon cars the Toyo Tires Racing Saloons series is now in its second season. With full grids, a friendly community of drivers and close racing at some of the UK’s best circuits, Toyo Tires Racing Saloons provides a great experience for anybody considering UK circuit racing.
Toyo Tires Racing Saloons grids are always busy. With a high number of entrants and a simple system of reserves, the series typically fills grids to capacity. Some wizardry in backroom admin means that the club’s committee rarely turns drivers away. At some recent events the club has arranged extra races at short notice to accomodate more drivers.