More energy efficient and also much slower to charge with a shorter range. Nothing we haven't known for 150 years. The reason we have had ICE vehicles for so long comes down to those two things.
Altough the slow charging is changing. Newer models can use DC charging at 350kW, which should increase to 500kW in the future. This is unpracticle at every home, but it should lower highway stops to 5-10 minutes, which isn't significantly longer then with gas currently.
