Rocky road ahead.

The article examines the impact of the trade policies of U.S. President Donald Trump on the automobile industry. Topics discussed include effect of the U.S. tariffs on Canadian aluminium on the Ford F-150 pickup truck, actions taken by China against the tariffs levied by the U.S. on Chinese goods, and information on the University of Michigan survey which found that the metals tariffs are hurting the state's car-parts firms.