Has anyone figured out how to delimit a CPX via canbus? Should it be possible at all?

I know the dealers can increase the speed from 45km/h to aournd 55km/h in the netherlands.

I've also seen some posts about how to read things like battery status from the canbus, however i cant find something ANYWHERE on the internet about actually reverse engineering the protocol.

One thing someone could do is to add a canbus sniffer and then to let a dealer do the standard speed increase. This way we at least will be able to do that. (unless they use some kind of challenge/response system)

Is it even allowed on this forum to post stuff about these finding?