Webasto increased global sales 9 percent to 3.5 billion euros last year but the German supplier has an even tougher goal in mind. Webasto Chairman Holger Engelmann wants to boost to 5 billion euros by 2020. Engelmann is "courageously optimistic" that the tough target can be reached, he told Automotive News Europe Managing Editor Douglas A. Bolduc. But he worries that the industry could be badly damaged if a trade war between Europe and the U.S. continues to escalate.