Pirelli GT4 America practices were combined affairs on Friday at Sonoma Raceway with both the Sprint and SprintX fields on track simultaneously, and it was Jason Hart who turned the fastest lap of the day.
Hart clocked in at 1:47.322 in the SprintX Pro-Am class No. 47 NOLASPORT Porsche 718 Cayman GT4 Clubsport, while Matt Brabham impressed by setting the second fastest time and the quickest of the Sprint competitors in his return to CRP Racing, driving the older-edition Cayman GT4 Clubsport MR.
Gregory Liefooghe had the third fastest GT4 time across the two practice sessions in his Pro-Am class BMW M4 GT4 for Stephen Cameron Racing, while Michael Cooper and Colin Mullan were fourth and fifth overall in their McLaren 570S GT4 machines for Blackdog Speed Shop and Andretti Autosport, respectively.
Sprint Qualifying is scheduled for 9:00 a.m. local time on Saturday with SprintX time trials immediately to follow.
RESULTS: Pirelli GT4 America Practice 1
RESULTS: Pirelli GT4 America Practice 2