I am attempting to create a hobby website where user profiles are cars. In the Fields section I plan on creating Fields like make, model, year, etc. I also want to create a category that they must choose for their profile to be in; for example old cars, new cars, etc. I then want to link to these categories in my main menu so that from the main menu you can essential browse the cars (profiles) by the type. How can I create something like this?