Originally Posted by stmoritzer
agree, the monitored speed is always above the real speed ( by law, in order you can't argue with police "that you saw a wrong speed on the dashboard and bla bla" ...)
He did maybe 310 or so, still very impressive :good:
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We've GPS compared the speed of a Ford GT, and its dead on until about 130mph, where the GT reads under about 3-4mph when GPS says 187 mph even...