GM and Lyft plan to expand their Express Drive short-term vehicle access program to California and Colorado. California members will have access to the Volt, and the upcoming Bolt when it becomes available later this year.

GM invested $500 million in Lyft in January. Express Drive, which began earlier this year in select cities including Chicago, Boston and Washington DC, allows Lyft drivers to rent GM vehicles on a weekly basis, including insurance and maintenance.

Several automakers are hedging against a future in which some believe that many people will choose not to own cars, instead relying on ride-sharing services (Ford has a new Mobility division that has been experimenting with short-term rentals and ride-sharing).

“Expanding Express Drive provides opportunities to hundreds of thousands of new potential Lyft drivers and continues to make car ownership optional for both drivers and passengers,” said Lyft President John Zimmer. “We are also excited to be adding electric vehicles to Express Drive, which is an important milestone for Lyft and the industry.”

“The Chevrolet Bolt EV and Volt are a perfect fit for ride-sharing, offering very low operating costs and a wide range of connectivity features,” said GM President Dan Ammann.

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Source: GM, Lyft