I do wonder why, when so many newer cars have all round cameras that do few (maybe none?) Do what Teslas can do and allow you to record the footage just by plugging in a USB/HDD. Seems like it wouldn't be a hard feature to implement compared to some of the useless sh!te that does make it onto production cars.
Even OH's 8 yr old Evoque has a load of cameras on it, so it's not like it's new technology
Very simple, and its one that cost Tesla massive sums (as they are rather stupid).
Dashcams burn out the flash memory, this mullered a pile of Tesla main controllers a few years ago.......and probably still is. So a Dashcam setup needs replaceable memory.
There are other challenges also, a dashcam is a complete standalone solution with its own power etc, this is critical as it does not write to flash continuously, rather in chunks, so lose the power supply during an impact on a car wide system, and you can corrupt the whole flash device and would certainly miss the 'interesting bit', the internal battery/super-cap on a standard dashcam removes this issue.
Its a feature we keep looking at trying to get a solution to but, its got major issues and you can image what would happen in the courts if a system failed to record