I did not miss your point in the slightest however. There is no car control. If there was it would be legislated so and bound to say.... THE SPEED LIMIT? The speed limit you speak of is the manufacturers themselves putting so called governor devices in their cars. They mainly go into touring cars (not super cars, E.G. the post you quoted initially) and can be circumvented legally in many nations.
And here is the actual reason.
Research. It sucks ey?German manufacturers initially started the "gentlemen's agreement", electronically limiting their vehicles to a top speed of 250 kilometres per hour (155 mph), since such high speeds are more likely on the Autobahn. This was done to reduce the political willpower to introduce a legal speed limit.
Last edited by Bissen; 08-07-2012 at 11:14.
Even the limiters by most auto makers when it comes to sport cars are usually not far from the top speed and are normally done to protect the motor/your life or from getting caught up in legal mess if something fails to perform. There's plenty of places in the US that allow you to play with your toys legally at any speed you want.
All US cars starting with the 2015 Model year will be required to have "black boxes" or event data recorders.