I initially took Slow Motion footage (4k 120fps) of cars passing my Mav3 at 55mph or 88kph with the auto settings on. Then someone commented how severe the motion blur was. I agreed, but I just figured the auto settings increased the time the shutter stayed open because it was overcast with no sun. So I immediately went out and put the drone in the same spot and filmed in manual, changing the shutter speed to 1/8000 and the ISO to 400. Now, in manual there is no motion blur at all. The cars in each frame appear so still the license plates are readable.
Video Mav3 1/8000 shutter, 400 ISO: (at time of this post 4k version may still be processing)
Video in simple Auto Settings:
Video Mav3 1/8000 shutter, 400 ISO: (at time of this post 4k version may still be processing)
Video in simple Auto Settings: