Simplifing the classes and making less would weed out the also-rans. You have to compete against “similar” year & model cars. If only 3 show up or 30 show up your still being judged which is a wildcard in itself. Remember beauty is in the eye of the beholder and I know human nature plays into this as we all have our likes and dislikes. Have 1 class that mural,pinstriped,weird cars are put in to compete against themselves. Call it strangest of the show or weird but true and let it be. We used to race motocross. We quite going years ago cuz there was an “F”ing class for everything and everyone. Yup, so your not so good rider would go home with plastic. They kept coming back and back and back. The days got longer and longer till sitting around from early morning till early evening waiting to race our motos got tiring and boring. Trust me, that will happen at car shows when you have all these classes and putting in 9-11 hours waiting for that great plastic trophy gets old.