JD Koos (No. 12 Nicole Douglas Design Porsche GT3 Cup 991.1) will make his Trans Am debut this weekend in the XGT class. Koos comes to Trans Am from SCCA Majors, and has previously finished on the ...

Six-speed 992.2 911 GT3 is not just the fastest manual car ever around the ‘Ring but it beat the 992.1 PDK GT3 by more than ...