Fastest lap is the 8th, starts at 15:47. 2018 ZL1 1LE. This is the session with my latest personal best at Sonoma in this car! Track conditions: ~70F, sunny morning. Tires are Nankang AR1 on their third track day. 315/30/18 front on 18x11 wheels, 335/30/18 rear on 18x12 wheels. Roughly 3/4 tank of gas. All TCS/SCS nannies and PTM are off. Achieved my goal from last time of breaking into the 1:48s, and I actually did it twice here =)