Many people equate the new-car buying process with the misery that often accompanies a trip to the dentist, and not without good reason. Stereotypical slick salesmen and that aching feeling that no one's got your back once you step onto a dealer lot have become expected aspects of buying a new vehicle. But you need only one weapon to chase away the demons and succeed at the art of the deal: knowledge.

It's surprising that when it comes to spending anywhere from $20K to $40K - or more - many consumers don't research how they can spend that money in the smartest, most economical way. It's a big chunk of change; why not make sure you get precisely what you want for the best price?

You'll find that most car salespeople are more than happy to help you with your purchase decision, but that willingness may be precisely why you don't want their help. They don't always have your best interests in mind; their goal is to bolster their bottom line. And they're not going to do that by helping you find the very best deal on the right vehicle for you. Showing up at a dealership with nothing more than a desire for a new vehicle could result in you driving off in a two-door off-roader geared for rock-crawling with oversized tires and all the bolt-on trimmings. Doesn't sound so bad, eh? Sure ... until you discover it's too small for your passenger and/or cargo needs, the ride is harsh, it gets limited fuel economy on your commute, and it costs more than you'd planned to insure. A four-cylinder, two-wheel-drive, five-door SUV or even a sporty mid-size sedan may have been a smarter choice - and probably a cheaper one too. Impulse purchases rarely turn out well for the buyer, but the salesperson won't have much sympathy, because you've already visited the dotted line.