If you've ever needed a shot of your actors actually driving a car, you'll need a special rig to do it. These tend to be very expensive, but here is a DIY method that works pretty well. It involves a dual suction cup lifter (the kind they use to move large panes of glass) being attached to your car and then attaching something to it that can hold your camera. While this has been done before, I employed a former piece of FF gear in a way you may not of thought of.
One interesting thing I learned from making this video was not so much how to mount the rig, but where to mount it. I had a challenging problem to overcome, but as you'll see, the solution was right in front of me.
Dual Suction Cup Lifter
Frugal Clamp (C-Clamp Mount)
1" x 15' Ratchet Strap tie-down (I found a single version for $5, but this is the basic idea)
58mm Circular Polarizing Lens