TSLA vs BYD: Investors seem to have a new favorite in the EV market, and it's not Elon Musk's luxury EV maker, Tesla. The shares of the Chinese EV maker BYD have now surpassed those of Tesla, with a year-to-date return of more than 21%. The shares of the US-based EV maker, on the other hand, have struggled to remain in the red territory, with a negative return figure of over 7% on NASDAQ.