I am currently using a windshield-mounted Escort MAX 360c radar/laser detector with the Escort M1 dash cam connected to it. I like the fact that it's total mass/area is not as large as most stand-alone dash cams, including the BMW dash cam (BMW Advanced Car Eye 2.0). From what I have seen on the BMW video of their dash cam, it looks quite large, as well as disappointingly, very after-market appearance. FYI, here are some links to the Escort M1 dash cam:
AVB-AMG
https://www.escortradar.com/products/m1#