My kids will likely be baffled by the idea that we attached so much of our own identity to our cars. The financial investment in cars to make a statement about ourselves (over and above getting us from A to B) is immensely irrational.
With self driving cars ownership will likely disappear, and be replaced with time sharing. At that point the connection between our view of ourselves, and the car we ride in disappears.
I'm not sure that completely excuses the lack of modern car aesthetic here, but it could go some way to explaining it.