The season was notable for its domination by future Formula One champion Mika Häkkinen and fellow Finn and future F1 driver Mika Salo; both drove Mugen-Honda-powered Ralt chassis, prepared by West Surrey Racing and Alan Docking Racing respectively.
Häkkinen started the year strongly with three wins from the first four races, but Salo responded with four victories in the next six events to establish an 11-point advantage over his rival.
[1] Other drivers in the field that went on to enjoy success in international motorsport included Christian Fittipaldi, who went on to win the International Formula 3000 championship the following year before enjoying stints in F1 and CART, and future touring car and sportscar driver Peter Kox.
1990 also marked the start of a dominant period for Mugen-Honda engines, which would power each British F3 champion until 2005 with only one exception.
^1 Häkkinen and Salo set identical fastest lap times and were subsequently both awarded an additional point.