Popularity has plummeted in markets like Germany, a country still haunted by its fascist past, where Tesla's share of EV sales plummeted to just 3.7% last month versus 14% a year earlier.

Some 1.1 million people were murdered at the camp - located in Poland - between 1940 and 1945, the majority of who were Jewish. Polish Sport and Tourism Minister Sławomir Nitras condemned Musk's comments and has since called for a Tesla boycott.

While Tesla's sales in markets such as Belgium, Netherlands, and Sweden rose last year, the overall picture in Europe is less than rosy for the automaker — esp