If you look at he efficiency of an electric motor, you ‘may” be correct.
But if you look at efficiency from the mine or the gas well all the way through the transmission lines to the end result, moving the car from A to B, I doubt it.
Ultimately, if a gasoline engine were more efficient, it would cost less to drive 200 miles on a tank of gas, then to charge up your car to drive 200 miles. True, the batteries’ extremely high cost should be taken into consideration, IN PART, but a huge part of the cost of the batteries has to do with economies of scale. (Where Toyota’s CEO is bashing electric cars, I suspect, is that he doesn’t believe costs will collapse with improved economies of scale. In one respect, he’s correct: lithium will become/remain scarce. OTOH, as with so many resources, we will do more with less.)