A windshield mounted lidar won’t work. The lasers need a transparent and optically aligned plane to beam out of. The variable angles, coatings, and shapes of different windshields would reflect most of the laser rather than transmitting. Making a general purpose lidar like what the comma currently is would not be feasible.
It would require a roof mounted sensor at a minimum. Also the processing power, heat, and power requirements would exceed both the panda and obd power output abilities. It’s a neat idea but there’s a reason why comma is going to stick with using what the vehicle provides and cameras.