note that this is true for spark ignition engines, but not all ICE, diesel engines can reach higher efficiency and there are even real diesel engines with almos

note that this is true for spark ignition engines, but not all ICE, diesel engines can reach higher efficiency and there are even real diesel engines with almost 50% efficiency[1], obviously not in cars though. [1]: https://engineerine.com/meet-wartsila-31-worlds-most-efficient/ https://engineerine.com/meet-wartsila-31-worlds-most-efficie...