Any Asian import car that has been modified for show or performance (or presumed performance). Although some like the Mazda RX-7, Toyota Supra, and Acura NSX are very capable cars that are superior to most of the shit coming out of Detroit since the 80s, most are economy cars that are poorly modified with cheap shit from Pep Boys.
Whoa! Look at that awesome Honda Civic with a 4-inch tailpipe, huge wing, and euro lights. I bet it owns at the track. Wait... you mean it's not National Sarcasm Day!?! Well forget that then.