Electric and Hybrid Vehicles

Tesla plunges in Consumer Reports' rankings

Tesla plunges in Consumer Reports' rankings

Tesla Motors Inc., the upstart all-electric automaker that once landed Consumer Reports' best-ever performance rating, has now achieved a far less impressive feat, with a ranking from the reviewer that labels it one the least reliable car companies in America.

The Consumer Reports ranking, released Monday, places Tesla at No. 25 of 29 for reliability, with reviewers saying the Elon Musk-led automaker's new Model X SUV "has been plagued with malfunctions," including with the "falcon-wing doors" that have become its signature.

The rough review, based on annual surveys of the magazine's subscribers, is only the latest hurdle for America's youngest major...