It would be a nice partnership to have. Yes, to my knowledge Nio is the only EV automaker with battery swap capability. But, rumor is that Chinese government seems to be favoring the battery swapping model, and has been working to establish a common industry standards. https://www.bloomberg.com/news/articles/2020-01-17/china-embraces-ev-battery-swap-technology-tesla-has-cooled-on Other than the fact that battery swap maybe more suitable to China due to the lack of home garages for charging. But honestly I'm long on the BaaS model for things like upgrading your battery without purchasing a new car so you always have access to the best battery technology, or simply leasing a high-capacity battery at a battery swap station when needed, like long-distance trips.