I was having a nice discussion with someone about why you need to flush the brake fluid - especially the stock fluid. This was the first lap on track in my then new C7 ZR1 with the OEM brake fluid. The brake meter shows pedal position, and as you can see, the pedal went 2/3 of the way to the floor braking for T1 after leaving pit lane. Always make sure to flush your brake fluid and use a high quality fluid like Castrol SRF.