Tesla Model 3
A Tesla Model 3.
  • Tesla just regained its title as the world's top electric car maker.
  • China's BYD said on Monday that sales plummeted to 300,000 for the first three months of 2024.
  • Elon Musk's company sold about 390,000 vehicles in the same period — far fewer than analysts expected.

It's been a nightmarish start to 2024 for Tesla — but the car maker finally got a sliver of good news on Tuesday.