Super Class - is a group of classes. (optional) examples are Chevy, Mopar, Ford or Motorcycle. Class - is what a car "item" will register in. Examples are Sport, Cruiser and Goldwing grouped by super class Motorcycle. Categories - Is what is being judged on a scale from 1 to 10. Examples are Paint, Creativity, Craftsmanship, Overall Visual Impact.
Each class can have different categories.
1) Create an account
2) Then log in to the website.
3) Once logged in, create an item. The Item will be your car/truck/motorcycle/house.
4) Then, go to the event page
Your item/items will be in a pull menu next to the classes. Then click the add to cart.