It's kind of weird because in some way, the "perfect" vehicle for a given road footprint is a boxy cube/rectangle. SUVs are closer to that than cars in general (minivans are damn near exactly a box and are the bees knees).
What's interesting is if you stop and think about it for even a moment, the popularity of the SUVs indicate that people do use their vehicles for more than just commuting or other things that transit easily replaces.
The minivan killed the station wagon dead (along with crash regulations, I suspect). And it's kind of sad now, the minivan itself is somewhat on life-support as the number of companies making them is dwindling.
Sliding doors are fucking sick and anyone who doesn't understand how wonderful they are should suck a fatpipe.
I'd love to see some of the larger SUVs with optional sliding doors, tbh.