Although the venture sought to produce premium cars like Tesla, it would attempt a different strategy from the US company that began with relatively limited production and focuses on a single model at a time.
The National Highway Traffic Safety Administration said in March it was collecting information after a Google self-driving car struck a municipal bus in California in a minor crash. But it did not open a formal probe.
The companies suspended services in the city on May 9, two days after residents voted to keep the city's law requiring Uber and Lyft, just like taxi companies, to conduct fingerprint-based background checks of their drivers.
While Tesla's Model 3 will hit showrooms in 2017, and as rivals Porsche and Audi are working on all-electric cars for release by 2019, the German carmaker appears to have put such cars on the back burner.