Spookpt,
I don't think your car is problem I think it is the way it was judged. You would find that there are alot of people scratching there heads with the results, cars with new paint getting nothing a few years ago but this year gets top paint.
I also had a bit of a spit as my car is not the prettiest, however I did finish off the interior just before the nationals and received the lowest score for the interior, and that is competeing with a few cars without an interior.
At least you cannot make a mistake with a race times
Phil