Japanese automakers Nissan and Honda say they plan to share components for electric vehicles like batteries and jointly research software for autonomous driving.
I assume that's about the self-driving part rather than the EV part. Honda was the first to actually sell something that met the requirements for the (American) Society of Automotive Engineers' Levels of Driving Automation that counted as the the human in the driver's seat not driving
It looks like the Honda one was actually only in Japan, but if I am reading correctly they still used the standards from the American SAE which had me thinking they did it in more markets. It was 2020 on the Honda Legend that they first did it, vs 2023 on the Mercedes, but Mercedes was indeed the first to actually get it certified in the US
They're asleep on the wheel though. Even with the partnership with Renault they're still selling cars with chademo in Europe, that's a Dead standard that less and less new chargers are supporting today