I think this is the huge balancing point at which cars rely on. You saw a lot more small cars and less of these huge monster trucks roaming around North America back when gas had hit $5/gallon. Now gas is $3 but accounting for inflation, it’s probably at one of the cheapest points it’s ever been.
Even though I argue many times for cars in these posts, I long for a day when gas is $10/gallon so that these 3-5 ton behemoths aren’t on the road carrying a single person. I’m fine with this causing an artificial limitation on people to pick and choose when they use their personal transportation. Granted, we’ve also seen that this results in the economy slowing down overall as people choose to go fewer places and thus spend less money overall.