Nissan fueled by renewable bio-ethanol 70% efficient solid oxide fuel cell

https://www.eldiario24.com/en/not-toyota-not-hyundai-this-engine/6243/

"produces electricity by combining oxygen and bio-ethanol... CO2, water released as byproducts... no need for hydrogen storage, due to on-site converting widely accessible/ renewable bio-ethanol into hydrogen... strong catalytic activity fostered by high operating temperatures"

Related:

Toyota claims the third-generation fuel-cell stack is 1.2 times more fuel-efficient than the previous generation, allowing for a 20% improvement in range
https://www.greencarreports.com/news/1145782_toyota-fuel-cell-stack-v3-hydrogen-cars

Composite bipolar plates provide 81% improvement to hydrogen fuel cell power density

https://www.compositesworld.com/articles/composite-bipolar-plates-provide-81-improvement-to-hydrogen-fuel-cell-power-density