Tesla Inc.’s sales fell for the 10th time in the last 12 months in Europe, where Elon Musk’s politicking and a changeover of the carmaker’s most important product have been major hindrances.

The company registered 16,888 new cars in February, down 40% from a year ago, according to the European Automobile Manufacturers’ Association. Tesla’s sales plunged 43% in the first two months of the year, deviating from the 31% rise in industrywide EV registrations.