BERLIN (Reuters) - European car registrations dropped in July and August after four months of growth, industry data showed on Thursday, suggesting that a global semiconductor shortage is hitting sales in car dealerships across Europe. New passenger car registrations fell by 23.6% and 18.1% year-on-year in July and August, respectively, in the European Union, Britain and the countries of the European Free Trade Association (EFTA), figures from the European Automobile Manufacturers’ Association (ACEA) showed.