FRANKFURT, Germany (Sept. 12)—The world's automotive community, gathered in Frankfurt for the triennial Frankfurt International Motor Show, took precautions Tuesday in the wake of terrorist attacks in New York and Washingon D.C. General Motors Corp., Ford Motor Co., Volkswagen A.G. and DaimlerChrysler A.G. largely vacated the 10-hall complex where the show is held, canceling all press conferences and cloistering executives from the media. GM went a step further, taking its executives to an undisclosed hotel outside Frankfurt. Siemens VDO, Continental A.G. and Covisint Europe were among the suppliers canceling press conferences on Wednesday. Early Wednesday, one of the show´s meeting halls—a second-floor hall housing the exhibit of Ford Motor Co. and its subsidiaries—was evacuated for a half hour because of a bomb threat. The floor directly beneath, which houses the Nissan, Renault and Volkswagen exhibits, also was evacuated. No bomb was found and no injuries were reported.