^that's one solution..
learn who the judges are, and what they like to see on cars, and outfit yours with those features?
get your family to judge?
judge it yourself?
quit worrying about what other people think of your car, and build it into something you can be personally proud of? (this is what i am doing!!)
car contests are a great place for new ideas, and camaraderie (i have been mistaken as a news photographer with as many pics as i take of the weird, or different features of cars..), but they can also be a money pit-- sometimes it is too easy to get caught up in attempting to win as many as possible, but the reality is that every contest has different judges with different tastes.. the most consistent trait of the cars i have seen win the most are the ones that the owners are very proud of.. do it your way, and see who follows..