Conan-
Thanks for the advice. I'm new to the in-car video stuff. I had wondered if vibration would be an issue. Apparently so...
Now that I've had a day to think about the mount (Which I really like the one I've got), I'm going to widdle out a new one tonight that brings the mounting point for the camera plate up higher and allow the plate to rotate. I think that will look cleaner and be more "trick" than using a Z bar mounting plate... It's got to look cool even without the camera
If I get it done tonight, I'll post up some pics...
Best,
Phil