But the entire system of the vehicle, and the way we use vehicles, and the way those form factors affect society and people's lives are very, very complex. So basically, the shift in technology is going to enable changes and improvements in all of those ways.
Also, look at what Tesla, Lucid, and even Volkswagen have been able to achieve in terms of innovations just to date. Tesla has found ways to let electric motors spin faster, drive vehicles more efficiently, get built cheaper, and without rare earths. Lucid has Tesla beat in terms of comparable capacity in smaller packaging. Even Volkswagen has impressed Munroe and associates with some of their design around motors.
I'd bet you can find people mistakenly saying, "there isn't much to improve," in internal combustion engines over their long history. Even now, this isn't correct. I suspect 21st century innovation in vehicles is just beginning!