The way I'd done it before was to class them in performance, Daily Driver, or show..
you would definitely be show with your interior.
judging sheets were the same for all, but DD didn't have their engine bay judged. show leaned more heavily on cleanliness and "do it right" while performance focused more emphasis on effectiveness of mods and a bit less on so-clean-you-can-eat-off-the-engine stuff.
BUT... I'm not sure what they're going to do this year.. these guys are free to do what they wish, but that's what I've done the past couple years heading things up.