I have autoxed my mini since December and my daughter also drives it. There are two meets a month and I am planning to attend them all. We enter in H stock and are runnig Pirelli 205/45/16 nerozero and with a CVT. It has been an interesting experience.
I am still trying to convert my driving style from rear wheel drive to front wheel drive and thus my daughter normally beats me by 0.5 seconds. I also am trying to convert to left foot braking to handle understeer.
john