BYD Begins Road Testing of Ultra-Luxury EV Featuring Coach Doors and Solid-State Battery

BYD has started testing a new ultra-luxury electric vehicle that combines coach doors with a solid-state battery, marking a notable step in the company’s push toward next-generation EV technology and premium positioning.

The vehicle, which has been spotted during testing, features coach doors—a design element typically reserved for high-end luxury models—and is equipped with a solid-state battery. Solid-state batteries are widely regarded as a promising alternative to conventional lithium-ion packs, offering potential gains in energy density and safety.

BYD has been investing heavily in battery innovation and expanding its lineup into higher-end segments. Testing this vehicle suggests the automaker is moving closer to bringing solid-state technology to a production model, though specific launch timing and specifications have not been disclosed.