I've never street raced my Z in the 7 years that I've owned it.
I'm not saying that I've never street raced...I used to street race when I was young and dumb. Now that I'm an old bastard I realize that it just isn't worth it. Even if you don't smash into a minivan full of kids, the legal penalties for street racing are substantial. In some states they will suspend your liscence or seize your car. No thanks.