http://www.camcorderinfo.com/content/The-Sticky-Pod.htm
You probably want to create one of those cool videos where you’re burning down the highway with a viewpoint from outside the car.
The Sticky Pod might help: It’s a suction cup mount that can fix your camcorder to any flat surface, such as a car bonnet or door.
Prices start at $59 and go up to $129 for the pro pak, which includes a couple of mounting arms so you can orient the camera properly.