BMW OEM Dash cams not compatible with BMW i3??
In looking at the BMW OEM Front/Rear Dash Cam kit, it has an interesting note on installation:
If an AGM Absorbent Glass Mat battery is not installed in the vehicle it will be necessary to retrofit one.
AGM or lithium-ion battery, installation Prohibited in USA
Which, I guess, is the reason the BMW OEM Dash Cam is not normally available in the US. I'm assuming that this is because the i3 12v battery isn't up to powering a dash cam setup for hours-on-end when it is in "park mode", with the car off, and the camera drawing power just from the 12v battery.