[gos]

You actually don't want to isolate the camera from shock, otherwise your picture will bounce around if taken from in-car. You want the camera to move with the bumps, that way all the static parts of the interior stay still in-frame while the car is moving.

This essentially means bolting the camera to something inside. A "real" mount would be to the roof or something, a swingarm from the headrests would vibe too much IMO.

Getting the dash + looking out the front in one shot is very hard if you're trying to use a camcorder or something similar. You may be better off with two cameras, then use post-processing to put the instrument panel in a PIP on the view out the front of the car.