The World Compact Car Race in the Professional Hall makes use of tuned cars.
Update:
The Race of NA Sports in the Professional Hall makes use of tuned cars.
The Clubman Cup in the Professional Hall makes use of tuned cars.
The Spider & Roadster Cup in the Beginner Hall makes use of a Lotus Elise (not S or R, the original one) that is capable of pulling away on straights from a 205 hp Mazda MX-5 NA with original suspension, max weight reduction etc.
The El Capitan 200 Miles Endurance Race in the Endurance Hall makes use of tuned cars.
Last edited: Aug 12, 2019