there are a couple, it depends. But i guess the biggest one for me is when some guy has like some old lemon status rice burner and does whatever ridiculous "enhancement" (whether it be a coffee can for a muffler, or if the muffler/part of the exhaust was removed) to make their exhaust sound ridiculously loud for nothing. On top of that, that shit sounds like farting bumble bee, and not in a good way. I don't understand what goes through their minds. I wouldn't be surprised if they thought in their little wanna be fast and furious world they pull up to evo's or vette's or what have you thinking they stand a chance. Runner up would be ridiculous body kits/exterior add on's. tl;dr: rice burners w/fartcans, and tasteless bodykits