Frankfurt / Main (AP) - Several hundred demonstrators of the alliance "Sand in gear" have blocked the main entrance of the IAA in Frankfurt. In white suits they held up posters with demands such as "car companies disempowered" and "the road is busy - traffic turn now" in the air. The goal is "to disrupt the course of the IAA with peaceful blocks," said the Alliance. "We are sending a clear signal against the destructive traffic system for which the world's largest auto show still stands."