I understand why we don't have currently have vehicles

I think we should have them. It doesn't make sense that sims just materialize from thin air. It's even worse that elevators are not animated so sims materialize from one floor to another.

It's like saying we don't need doors if sims could materialize from one room to another. Why take the effort to animate and code doors if sims could just vanish from one room to the next?