Ah, the search for the perfect Halloween costume. At this time of year it can be disconcerting, vexing and downright all-consuming. Sure, Halloween is a holiday of shared fun and frolic, but picking the right outfit that will gain the desired amount of attention -- and the right kind of attention -- can take effort and (dare we say it?) more than a little thinking. The goods news is that even in this quest we at KBB.com are here to help, because it is our collected opinion that the best Halloween costumes aren't really the best unless they are set off by the appropriate car. Let's face it, if you dress as Donald Trump and arrive in a beat-up 1989 Yugo, it just won't make sense. If, on the other hand, you pull up in a vehicle that delivers the perfect complement to your outfit, you will immediately vault to the top of the Halloween class. In the following pages you will see a popular Halloween costume (thanks to Party City) accompanied on the next page by the best car to complement it.So here are what we consider the 10 Best Cars for 10 Popular Halloween Costumes. Trick or treat!