It looks fake to me. If you look at the car on the side of the road at 0.08 seconds and the car in the "crash" they both appear to have the same writing on them and I think it's even the same license plate. Plus, looking at the "crash" in slow motion there's no evidence of damage or impact. At 0.14 seconds it just sort of appears like they photoshopped it in.
I take it you are not accustomed to Russian dashcam videos.
No. Are they all fake?
No. Are they all fake?
After watching a lot of those Russians videos, I think putting a dash cam in the CX-5 is not a bad idea.