Autobahn

            Autobahn is a federal controlled access highway system in Germany. It is very well-known for having no speed limit for some classes of vehicles. It is also known as one of the most dense and longest highway system among the world. Lots of people when they want to test  their vehicles transport their cars to Germany to test their max speed limit.

       Autobahn does have speed limit in areas that are urbanized, substandard, accident-prone, or under construction.