usually I am in and out of my car 6-8 times an hour.
My CarPC is fine. I am not using a mac, but a computer is a computer. The only difference with a mac is that it is shiny white. That's it. Never had problems. And I could not be happier with having a CarPC! You, I, and other delivery guys know, that when you are in your car as often as we are, you get tired of CD's. YOu go through music really fast, so the CarPC is a must.
Do it. Worklog it. Post it here!