Texas World Speedway Performance Driving School, Instructor Run Group, 01/17/10. The track was hot and the air was cold. While chasing a Corvette all session, I logged a personal best time of 2:01.9. All measurements were taken with a Traqmate GPS Data Acquisition system. Car is a supercharged '99 Mazda Miata. Among its many modifications, the wheels were 15 x 9 6UL's, and the tires were three (somewhat worn down) full-tread 225/45-15 Toyo RA1's and one Toyo R888.