I've hacked in a way to display SOC% on the oldest 2011-2013 LEAF! The solution wasn't as elegant as I'd hoped for , but now I don't need to take out Leafspy to check the SOC anymore! More info in the description for anyone curious
https://youtu.be/LuiKp4wjlpQ
https://youtu.be/LuiKp4wjlpQ