I got 9:06.5 on my first ever go at lapping the ring. The pace car did make it easier, as I had no clue what the corners were. Second attempt I just followed a bit closer and got 8:58.1.
It wasn't so much the times that I was chuffed with, but rather the fact that my first 2 attempted laps of the Nurb were both clean and I hadn't even put wheel on the grass (obviously I was being conservative).