Organize a small car show

Hi guys

I have this crazy idea for some time now - I want to organize a car show! :D

I know it is a daunting task - I've got to think about location (I was thinking of enquiring a price at http://www.r-zs.com/en/ for this big hall/tent they offer for rent), insurance (what types of insurances I need),parking, registration (do I need any special permission from the local authorities), spectator entrance (how much do I charge - or do I let it go for free) etc ...

Between friends and family I can come up with a decent number of cars, and I have a couple months to get everything set. I just have no clue how to organize it or make money at it. I've been told not to charge admission or cars or people will expect pro judging and trophies (or just not show up at all).