This logically tracks, but remember that correlation isn't causation. It stands to reason that people who see driving as an aggressive venture choose the large

This logically tracks, but remember that correlation isn't causation. It stands to reason that people who see driving as an aggressive venture choose the largest vehicle they can. But as pickups make up 20ish percent of all passenger vehicles, it's obvious that not all pickup drivers are aggressive or traffic would probably never actually be moving.