Tracked my Z51 mag ride C8 for the first time using PTM sport mode 1 - will move to race mode next time. Handles much different than my base C7 but I still love my C7. 

C8 is much more planted especially at high speeds, and has a kinda cool side ways drift which you can spot near turn 9 where the whole car evenly slides. I'll adjust negative camber to high street specs and should be able to knock time down. Enjoy.