Re: that said, here's a challenge to Google - I *dare* you !!!!!!
"And until Google Maps provides a speed limit display (like HERE does) it's dead to me."
Don't they have road signs where you live? Does your car not have a speedo?
Having said that, this one of the many reasons I use a dedicated satnav rather than a phone pretending to be a satnav until it decides to be something else while navigating an unfamiliar area.