I only sing in my car when i'm alone. i try to spare people the torture. and i sing loud!! and i'm with sharni as far as also dancing to the music. you have no idea how many times i've been stopped at a red light, doing my thing, only to look over and see the people beside me (and usually the ones behind me) giving me the weirdest looks. i never know why. i'm a kickass car dancer. woohoo!!