So true 67GTA, and I have found the PSC2s to be quite similar when it is cool ---- friends with Trofeos echo the call. Should be no surprise as the three have tread patterns that are almost identical, only the names have changed to protect the Brand Loyalists, ha.
It is reasonably well known among track or autocross folks that most of the 200 TWR tires or DOT Comp Tires should not be run under 40 degrees as they need much warmer temps for their compounding and sidewall and tire structure. What usually happens is drivers go out thinking it is mid 40s or...