Hello, the gates open from 9 to 11 am. we hope everyone is parked between those times. But, if you cannot make it in those times, you are welcome to show up when you can. The cars are parked by mark. if you tell me what you are bringing I can try to park them as close as possible, but still in their own marque.....I am sure we can accommodate. Note that all cars are roped and only car owners are allowed inside the roped areas. Me and my volunteers we keep a close eye on the wristbands that identify the owners....that is if you are worried about being too far from your cars.