This is the best summary I could come up with:

With the permission of Berlin authorities, local night-clubs blocked the busy road throughout Saturday afternoon and evening, pumping out music from impromptu stages.

The six-lane motorway would destroy some of Berlin's edgiest night-clubs including About Blank, Wilde Renate, Else, Oxi, Void and Club Ost.

Germany's transport minister Volker Wissing and Berlin's mayor Kai Wegner want to extend the motorway to deal with the city's growing population and a rising rate of car ownership.

The Autobahn was part of West Germany's utopian post-war ideology of a modern capitalist metropolis: the car would be king and concrete highways would smooth over the scars of a city traumatised by war.

Greens and left-wingers say this undermines climate change goals and that Berlin is out of step with other western cities, which are trying to limit not encourage car use.

"This battle represents the tensions in the city and within German politics," says Elisabeth Steffen, spokesperson for About Blank, one of the clubs threatened by the motorway.

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