Govenor

[rikgray]

From June 12 Wall Street Journal review of Nisan GT-R
"How smart is this car? On public roads the top speed is a mere 112 mph.
It will go its top speed of 196 only when the navigation system informs the
car that it is on a Nissan approved racetrack."

[konjiki7]

They have to keep people in check some how but I'm pretty sure it's been defeated already though.