Long term, the pinnacle of racing is going to be an E car with 4 motors, one on each wheel.
The speed/acceleration they can generate now with this tech is mental already.
I mentioned this earlier, but I do wonder how F1 will stay relevant as is, long term.
IMO F1 needs to dump the eco slant, and save fuel in other related areas, such as team transport and using sustainable products where possible etc. It makes no sense to be fuel saving for half the race, in lame sounding motor cars.