Tesla Inc. sales kept sliding across Europe’s biggest electric-car markets in April, despite the company rolling out an updated version of its most popular vehicle.

Tesla’s sales continue to plunge across Europe, even as car buyers there increasingly turn to electric vehicles.

New Tesla cars sold in the U.K., Germany, and Spain fell by double digits in April, while China-based BYD has seen an eye-popping 644% surge in Spain this year. New Tesla car sales plunged across Europe in April even as sales of other electric vehicle brands soared,