So you are planning to capture shots of someone driving a car from challenging angles. These 3 car suction cup mounts have you covered:
ASXMOV 50kg Car Suction Cup Mount: compatible with GoPro HERO, DSLRs and camcorders. Lets you install your camera on your windshield or body of your car.
Delkin Fat Gecko Triple Mount: has 3 suction cups to keep your camera stabilized. It can handle camcorders and cameras up to 8lbs. You can attach it to any smooth surfaces.
CAMTREE G-51 Gripper Campod Car Mount Stabilizer: can handle cameras up to 9lbs. It has shock absorbing properties and lets you adjust it on your windshield, car door, and roof.
Have you found car camera stabilizer mounts? Please share them here.