Lying speedometers

Posted Jan 10, 2016 0:55 UTC (Sun) by giraffedata (guest, #1954)
In reply to: Inside the Volkswagen emissions cheating by ken
Parent article: Inside the Volkswagen emissions cheating

You misread the comment. It says the GPS reading, which is presumed to be correct, is 10-15% slower than the speedometer reading. So the speedometer overstates the speed and you cannot break the speed limit by driving by the speedometer.