After reading a lot of reviews and visiting multiple providers sites, I whittled down my candidates to 3.
Innovv K5
Thinkware M1
Viofo MT1
Of these three I would choose the K5 except for three reasons.
1. Front camera and DVR are 1 piece (too big to make inconspicuos) will be stolen right away.
2. 4K camera, not looking for a GoPro replacement
3. Cost
Thinkware M1
Here again the cameras are too large and easily noticed (theft issue)
Viofo MT1
Not happy with the camera mounts on the system. 1 axis
But Oh Joy! Innovv today released the K3 what they have been saying since the release of the K5 is going to be the midway point between their K2 and K5 systems. I do believe I have found my next add on.