Just as I thought it would the P Zero Corsa is being put on the new Street Touring Tire Exclusion List. With the exception of one size, 215/45/17, the Corsa met the definition of an 'R" tire with a 60 TWR but that one size has 2/32" more tread depth and a 140 TWR which some then considered it to be a legal ST tire. In talking to Vince Bly, of SCCA's STAC, I learned that this tire is not legal and is or soon will appear on the NEW exclusion list.

No other tires were mentioned as being on the list but the new Hankook Z212 will not be legal this year as well due to a combination of an error in the rule book and the fact that the tire appears to be made just for the class and will not come to market until August.