It’s largely roll over protection safety requirements have increased dramatically. So you get massive pillars that have to distribute force into the rest of the body.
Which also has to handle that load, or prevent intrusion laterally from side impacts.
But SUVs are neither aerodynamic nor safe (for others)…*
*In comparison with normal cars.
There are also things like safety standards and whatnot, there’s more nuance here beyond some shape conspiracy lol
It’s largely roll over protection safety requirements have increased dramatically. So you get massive pillars that have to distribute force into the rest of the body.
Which also has to handle that load, or prevent intrusion laterally from side impacts.
It’s largely driven by safety designs.