Tesla's sales decline leads to downgrade to 'Sell.'

Tesla's sales are facing challenges in important markets like China and Europe. Analysts have downgraded the company's stock rating from "Strong Buy" to "Sell." This change comes due to rising competition and political issues that are affecting sales volumes. The company's full self-driving technology had previously generated optimism among investors. However, the current situation has led to concerns about Tesla's future performance in these regions. Despite these challenges, the article emphasizes that no specific investment advice is being offered. There are also statements about the author's lack of financial interest in Tesla. The overall message suggests caution for potential investors in light of the recent developments.