BYD Seagull
The BYD Seagull costs about $11,000 in China.
  • Sales of electric cars in China are expected to rise at a slower pace this year.
  • That's likely to be a problem for Tesla too.
  • Elon Musk's company has also struggled to keep up with Chinese rivals' aggressive price cuts.

BYD and Tesla both posted anemic first-quarter sales this week, serving up a reminder that demand for electric cars appears to be stalling around the world.

China, the world's largest EV market, hasn't been immune from the slowdown.