I been to a few show and shines and they all have different catagories. I personally like C1 throught C6 with C4,5 & 6 being divided into coupes and convertibles. I also like the idea of a seperate catagory for C5 and 6's with less than 10,000 k. Another idea I saw was best engine, best paint job and best wheels. What do you feel is best?