This chapter analyzes the reaction and strategies of the automobile industry and its global federation, the Bureau Permanent International des Constructeurs d’Automobiles (BPICA), to the convening of the United Nations Environment Programme (UNEP) Motor Vehicle Seminar, held in October 1976 in Paris. BPICA had since the late 1950s organized its members (national automobile industry associations) to lobby for harmonized technical rules within the UN Economic Commission for Europe (ECE), arguing for the importance of integrating European markets by avoiding raising barriers to trade through dissimilar national regulations. In conversation with literature on business’ role in reshaping global environmental governance, this chapter uses the UNEP seminar as a lens for understanding how the global car industry interpreted the polycrisis facing Western political and business systems in the 1970s, and how it organized transnationally to influence regulatory development on national and international scales. Drawing on fresh archival records, this chapter argues that BPICA and its national automobile industry association members used the UNEP seminar to assist their members in shaping national regulations in the wake of the energy crisis. While the UNEP seminar was thus useful for the automobile industry, it did not fulfill its original objective of limiting the environmental impact of the automobile industry.