10. The 1994 season saw manufacturer interest continue to increase. How many manufacturers had official entrants at the first race at Thruxton for 1994?
From Quiz BTCC - The Super Touring Years
Answer:
10
Ten manufacturers entered cars for the 1994 BTCC season: BMW, Ford, Vauxhall, Toyota, Mazda (departing after round 8), Renault, Peugeot, Volvo (with their famous 850 Estate), Nissan and Alfa Romeo.
Alfa Romeo dominated the season, Gabriele Tarquini winning the Drivers Championship, with 8 victories, Alfa Romeo winning the Manufacturers Championship.