Tesla is facing challenges in Europe and the UK, its third-largest market, due to increased competition, product changes, and controversy surrounding CEO Elon Musk. Despite this, a prominent Tesla supporter on Wall Street remains optimistic. Data from the European Automobile Manufacturers’ Association show a significant drop in Tesla’s registrations in the EU, UK, and EFTA, while overall EV registrations have increased. Analysts attribute the decline in Tesla's sales to heightened competition in key regions like Europe and China. However, they believe that Tesla's new models and upcoming affordable options could help mitigate these losses. While concerns over Elon Musk's controversial statements may have impacted Tesla's sales, the bullish outlook for the EV industry could benefit all automakers in the long run. The focus now shifts to March sales figures for Tesla, particularly with the launch of the updated Model Y, to gauge the company's performance.