In the US I wouldn't worry about it... yet. We're just getting to the point that they can give you a speeding ticket by mail if they catch you with photo radar. They'll have to deal with the ACLU before they can stick in individual with evidence from an electronic telltale. They'll probably start with rental cars before such features go mainstream.

Now, when you buy a car like the Mitsubishi Evo they tell you not to rev past 6000 rpm for the first 1000 miles or something like that. The dealer tells you that you'll void the warranty or some part of the warranty if you do. Why they don't code the ECU with a lower rev limiter for the first 1000 miles is beyond me. Particularly in a car that feels like is has a power assisted throttle pedal.

FWIW, the add-on GPS nav unit in our minivan recorded a top speed of 375 mph. How my wife did that in a car with governed top speed of 115 mph I'll never know

Sixto
95 S420
87 300SDL