Apparently, the Japanese version of the Nissan GTR has software that limits the vehicle's maximum speed unless it is near a Nissan approved racetrack. Source:

Apparently, the Japanese version of the Nissan GTR has software that limits the vehicle's maximum speed unless it is near a Nissan approved racetrack. Source: http://en.wikipedia.org/wiki/Nissan_GT-R#Aftermarket_tuning http://en.wikipedia.org/wiki/Nissan_GT-R#Aftermarket_tuning