Carmakers Are Facing a Perfect Storm in Europe

After a decade-long boom, Europe’s automaking wheels are coming off. Demand in the region fizzled late in 2018 due to a combination of emissions-testing bottlenecks and economic headwinds, signaling an abrupt end to years of robust growth. British consumers led the change, and more pain could lie ahead as doubts linger about the U.K.’s relations with the European Union after it leaves the bloc.