The season started on 17 March at Silverstone and ended on 13 October at Thruxton following sixteen races.
The 1991 season is often considered a 'vintage' year for the series, producing two future Formula One Grand Prix winners in the form of Barrichello and David Coulthard as well as a future champions in CART (de Ferran), BTCC (Rydell) and WEC (Kristensen).
It was also the last title win for Ralt chassis and the West Surrey Racing team.
Class B was won by Finnish driver Pekka Herva.
Source:[1] All races were held in United Kingdom.