There's some weird stuff here in the USA though with the CAFE rules, which strangely makes building larger trucks the thing to do if you want to pass.
There's a large number of people who want smaller pickups, for instance (I'm one of them - I used to own a 4-banger Ford Ranger - I loved that truck and I wish I never got rid of it) - but they are impossible to find any more. You can't even find 2-door standard cab short bed pickups. It isn't that the demand isn't there for them (the Ranger was a very popular pickup, even at the very end) - but that something about the CAFE rules makes building smaller pickups bad for the total sold fleet in terms of certain EPA stuff (I don't quite understand it completely, but I've read articles about it).
Interestingly too - the size of pickups was increased; what really seemed to have happened, is they "pushed up the models" - ie, what used to be the F-150 (say 1995 vintage) no longer exists. What we see as the F-150, today, is actually the size (and price) of the F-250 of 1995. The F-250 is now the F-350, and so on (it kinda levels off after the 400 class, simply because those and larger were mainly niche sales to individuals, or commercial sales). I don't know if that is truthly real, but if you compare the sizes of the vehicles and options, it feels like something they did.
My current vehicle is a 2004 Jeep TJ (if I could have bought a post-2000 Scrambler I would have); I like the short wheelbase, mainly, and found that I don't really need all the room of a full-sized pickup like I had before. That said, I do sometimes wish I had the room my old Ranger afforded me. There are times I see something on the "side of the road" that I used to pick up, but now I can't (yeah, I'm one of those guys). Oh well - more junk I don't need, right?
I'd love to see smaller vehicles make a come back, because it might also mean smaller pickups and a return to smaller Jeeps and other 4wd vehicles, too! But until those CAFE rules change, I don't know if we'll ever see that here.
BTW - regarding the CAFE rules - from what I recall, they have something to do with the "area" a vehicle occupies, not it's overall size or weight class; I also think it applies only to pickups/"small trucks" - and there's something that plays into the overall sold "fleet" of the manufacturer. Maybe somebody else here could explain it to me better.