Eventful first lap of the first Boxster Spec race with POC at the new Buttonwillow Circuit track. Officials were slow getting everyone gridded so a couple of us had to start DFL. I made good progress in the first lap before a radiator hose leak, forcing a lap 2 retirement and a DNF. Circuit is a great new addition to SoCal racing - smooth, fast and wide, with a lot of passing zones.