Oh top tip, don't service you car literally day before track thinking fresh oil etc will be better for it, do it a week before. Last thing you want for example is the sump plug to have a little leak then drive it hard for few laps, drain oil and pop engine or put new brake pads/tyres on day before that then won't be bedded in, people do these things and then break things, hopefully their own car and not someone else's. I do nice mini service week or so before, fresh oil and filter, check brakes, tyres etc clean air filter if its induction kit or replace if standard then potter around, do some quick runs and recheck. I also never fill oil to max always about 3/4s because my theory is without a baffled sump you don't want to risk oil starvation but then with hard driving you don't want to much oil that could cause problems also. That's my little ritual anyway, might be complete rubbish but I've not blown anything up yet, touch wood.