Using the new GoPro Hero4 Black that I bought in the C5Z. Mounted to the inside of the windshield using a suction cup mount. Took a drive through St. George Island State Park from the entrance to the end of the paved road to get video of the drive.
So far I'm pretty impressed with this little camera. Video was taken at 1920x1080p at 60fps. I haven't tried the 4K option yet, mostly because my video editor (Sony Vegas Pro) doesn't handle that resolution on the older version I have.