The BMW brand logo can be seen on the BMW four-cylinder (also known as the BMW tower and BMW high-rise), the main administration building and landmark of the vehicle manufacturer BMW.Shares of Europe's biggest carmakers traded lower on Wednesday, amid concern that the European Union's latest efforts to protect the domestic steel market could threaten the region's auto sector.The European Commission, the EU's executive arm, announced on Tuesday that it plans to hike steel tariffs and sharply cut import quota ...