Kind of sad that you have to mess with the camera to get more bitrate, why can they not just include more settings in the firmware and provide users with the maximum or close to maximum limit for people who want more bitrate. If the Sony x3000 can do 100Mbit so can the YI so why limit the hardware ?
I would have bought a gopro a long time ago if it had functions for dashcam use etc, external microphone but they are a bit expensive and as of now I do not know if this action cam market is stable. Seems to be going down the drain, to many players and to little revenue unless you are in China, then it might work. But regardless of hardware if you do not have a solid stable firmware what is the point of flashy hardware.
The thing with higher bitrates is editing and everything else, so you do not loose any quality. Once you do your finale encode you get the high bitrates where they are needed and the rest is compressed to a good enough quality. Seems that Yi has been silent for a while, or the action cam business in general.
I wonder if you can use gopro for dashcam use, or are they still ignoring that ?