I go for walks in the morning and there's a road bottleneck and it's hilarious and sad to see the cars queueing up on both sides, huge ones, with a single person in them, every morning.

I do own a station wagon, and it's shorter than most SUVs, and I use it for long trips, but let's be realistic, that's not what most drives are.

Most of the time people drive sedans alone.

If people bought based purely on passenger need 99% of vehicles on the road should be 2-seat coupes, pickups and vans.