Our Kona sped limit recognition regularly tells me the limit through the roadworks on the M1 south of Northampton is 80mph, and a few times in London, in a 20mph zone, told me the speed limit was a nice, safe relaxing, 110mph
I didn’t think about this before beyond ridiculing it, but maybe it read the kmh speed restriction from the back of a European LGV or van for the 110mph, but the 80mph is every time I’m on that stretch of the M1, regardless of whatever vehicle happens to be in front (with or without speed restrictions printed on it)
Trust – but verify. Technology is an aid, not a brain replacement