Rivian CEO issues strong statement about people who purchase gas-powered cars: ‘Sort of like building a horse barn in 1910’::"I don't think I would have believed it."
Not OP but searched up EE's video on a topic like this. Been a long while since I watched it so I don't remember much about it in description is the sources. So at the very least you can check some of that type of stuff.
But yeah in general an ICE is horrendous at efficiency vs electric. An ICE blows some 70+% of its energy on making heat we don't use but instead actively use some of the available energy made to cool it.