This also underline ( i think ) that for dashcams the sweet spot for a plate capture are actually pretty small, the 4K do seem to enlarge that little sweet spot.
This is one reason i am so glad for my lens modified camera in the car, it and any of the other cameras i have on the windscreen make sure i dont miss out unless its circumstances where plate capture are mute anyway.
I feel like when looking at the footage from the 12 MM camera it is more a case of the car coming towards me when it hit the sweet spot on that camera Vs the regular cameras its more like the car pass buy me and their sweet spot are right before that happen.
Still i am pretty relaxed in regard to plate capture, i sort of have to be as i fear i would otherwise be damn frustrated with any camera and my gray hair count would just explode, and that's bad enough as it is.
It is a viable test method / subject, people just have to realize that what some tester get on his camera can be hard to replicate in your car as light levels can fluctuate a lot, at least if you dont have a clear blue sky.