Power plants + EVs are much more efficient than ICE cars, even if the power plants are 'dirty', for many reasons: recuperation, the car not spending more energy warming up, thermodynamic efficiency of the engine compared to generator, etc.

Digging up liquefied dinosaurs, shipping them thousands of kilometers all over the world in huge ships, doing crazy chemical things with them, and then burning them in small batches 2500 times a minute ... how could that ever make more sense than using power grid?