From 4Car - "The German car makers are considering the abandonment of their "gentlemen's agreement" to limit the top speeds of most of their cars to 155mph, according to rumours on web forums. The faster models from Audi, BMW, Mercedes-Benz and Volkswagen have electronic speed limiters fitted, though Porsche does not comply with this agreement, and drivers regularly test out their efficiency on still-unrestricted stretches of the autobahn system. However, with ever-easier access to aftermarket firms which can remove the electronic limiters, many manufacturer-approved modifications from the likes of AMG, Brabus, Alpina and so on which also offer higher top speeds, and ever-faster imported vehicles, the 155mph limit is now thought to be a put-off for those who like to brag exactly how fast their car can go, and how fast they've managed to go. Such drivers perhaps account for a large proportion of the declining German car market - but in order to satisfy them, manufacturers will presumably now have to start producing more cars which go beyond 156-160mph, the 'real' speed limits of many models which currently boast that they are "limited to 155mph".