[David Hodgson]

Les, I can’t see anything contrary in the supplementary regs.

Currently two entrants can use the same car in the same class, but I see where you’re going.

Class 1 is unlimited engine size but 15” road or “R” tyres, and class 2 & 3 is any road or “R” tyre but set engine sizes. So with or without a tyre change, the same car could be eligible to enter either 1&2 or 1&3, depending on engine size. Appears to be nothing preventing 15" tyres in class 2 or 3.

Each car is scrutinised for compliance to class, and some rotate tyres during the course of the weekend, but whether the officials would be happy with a tyre size change between events to comply with class requirements, not sure. There would be time on sprint day between events, but on Saturday there are 3 events run concurrently and you get three goes at each. Time would be tight to get all 3 goes each.