Basics

Fill it with fuel

Take everything out the boot

Check the oil and coolant

Inflate your tyre a little bit more than normal

Check your brakes

Put your hemet on

Dont crash

Enjoy yourself

This list works for me[:D]

 

Alan

Add;
take out floor mats, remove anything that is loose in the cabin;
how much you inflate the tyres by depends on the tyre, and the track;
keep the side windows up;
check wheelnuts;
check battery is secure;
check if you need to tape the lights (depends on the track owners/organisers);

Afterwards; park up in gear, leave the handbrake off.

There are other things to consider as well.

Remember to take your driving licence along to signing on. (and not your wifes [:$])