In time, probably yes. But the life span of cars need to increase a lot because the advances in electric engines are minimal (efficiency is already very high),

In time, probably yes. But the life span of cars need to increase a lot because the advances in electric engines are minimal (efficiency is already very high), batteries are replaceable and there is no reason to design and build cars for an average lifespan of less than 25 years instead of the current ~ 15. That is a saving not just in money, but also in pollution caused by steel processing, transportation, etc.