prickmobile
Any normally crappy car that is outfitted with various "improvements" that suggest it is driven by a prick. Such additions include fake mufflers, fake spoiler fins, and fake air intake scoops. Attaching these things to a car is most often a failed attempt at appearing "gangsta." In no way are these cars any better than the car they appeared to be before some prick put these aftermarket additions on.
I love how prickmobiles can make all the noise in the world and still be slower than my minivan. They just draw attention to their own crappiness.