This was not a meaningless discovery, after seeing the video initially i was wondering if it was something that could be activated with bimmercode. After this thread i was sure to enable! Would have been none the wiser otherwise.
I have used overspeed warnings in other cars. Living in Virginia, the only state where reckless driving is a criminal offense. You get caught 20mph over or 80mph and it’s reckless - a criminal misdemeanor.