I find myself always turning the HUD in my car, it'* sort of distracting. It is freaking cool though, I'll admit, but it seems to me that it tends to just annoy me while I'm driving. Maybe this is the reason HUDs aren't in more vehicles these days. What about you?

Mine'* always on. Adjusted to full bright during day, full dim at night. As low in the window as it can be.

Interesting, I just can't seem to get use to it. Maybe I should try driving around with it on more often and see if I eventually start liking it.

Always. Day or night

Mine is always on at full brightness both day and night, It did take me a little bit to get used to it, but now I love it, never having to look down to watch your speed is great.

Well, I'm gonna try driving around for a few weeks with it on, you guys convinced me.

Mine is always on, I love it.

Mine is always on. I'm so accustomed to it that I find driving vehicles without a little distracting. GM is still (at least up to '07 - not sure about '08 ) putting it in some vehicles, just not as many.

Mine is always on. I can't imagine living without it!

Always on in the SSEi, and I wish the SLE had it too. Freaks me out when it'* not there, and I find myself unaware of my speed without other cars around me.