Thanks for all your comments.
So far I'm still in the building/testing phase of the "rig". Nothing too impressive and it will definitely be challenging to get angles that I really want.
It took me weeks to find pieces of the puzzle for car rigs that others have built.
Here is a "Before" picture.
#1 is the picture taken with the actual "rig" when it was put together for the first test.
#2 and #3 were shots using a combo of background stand bars + magic arm or tripod + magic arm mounted inside the car.