C360R’s Matt Plumb Fastest Overall in Austin CTSC Practice
Thursday saw the IMSA Continental Tire SportsCar Challenge teams take to the track in an official session for the first time in six weeks. C360R’s Matt Plumb was fastest overall in his McLaren 570s GT4 with a lap of 139.832 seconds (87.533 mph). Practice No. 1 Plumb’s quick time came roughly halfway through the one …