Q: How many parking spaces does the small truck take up?

A: Exactly the same number as the big one does.

The problem is all cars, not just big cars. Small cars contribute to cities being designed to cater to drivers at the exclusion of every other consideration just as much as big ones do. Small cars require just as many lanes of traffic, and just as much otherwise-useful land paved over and obliterated for parking. Walkability gets ruined by minimum parking requirements just as much whether the cars in those spaces are Priuses or F-250s.

Posts like this are nothing but a circlejerk for small-car drivers to feel smug about themselves when the reality is that THEY ARE JUST AS MUCH PART OF THE PROBLEM.

Those two vehicles are different. The one behind carries more people, can tow greater weight and with the right tyres probably has better capabilities off-road and in poor weather (floods and snow, for example). If the owner only needed it for the boot space then they'd be daft to get the bigger one (and probably wouldn't, due to fuel efficiency) but how does anyone here know what the owners need them for? Judging by looks is rather passé these days isn't it?