Marchionne calls for cooling-off on U.S. trade rhetoric dzadmin March 6, 2018 March 6, 2018 No Comments on Marchionne calls for cooling-off on U.S. trade rhetoric Fiat Chrysler CEO Sergio Marchionne called for a cooling-off over U.S. threats to impose tariffs on steel, aluminum and European car imports, warning the resulting “noise” was complicating talks on the future of NAFTA.