TMT PTX Guests alongside Schönox HPS and Küberit hosts
Students receive trackside instruction before hitting the circuit
Instructor Doug Van Den Brink with Team ÖN IT
PTX camaraderie on full display
Porsches were made for these turns
The starter's tower provides an exhilarating vantage point
Smiles are contagious after thrilling track sessions
Mark Bischoff, left, with his autocross team
Kemp Harr and Geoff Gordon during a rare break
