is there a fix for speedo reading too high?

[Garymyn]

Both of my Boxsters and my BMW readabout7% high. I heard that the odometer reads the correct distance. It must be a German regulation.

[mikefocke]

Manufacturers don't want to be in legal trouble if you get a ticket. Going back 40ish years, all my cars have been the same. Except one, a Ford. I got out of a speeding ticket in it once by having the speedometer checked and handing that certificate to the judge. Funny thing: it wasn't the speedometer that was at fault, it was my right foot. But the judge saw I had spent money on the test and I was young and poor so he cut me a break.