Not saying we should, or that it could even be conceived in the USA, but AFAIK Japan bases ownership fees by virtue of size and engine displacement - Big vehicle with big displacement costs exponentially more than a smaller sized, smaller displacement vehicle. Could help in this country if they also included MPG as a factor. A lot of larger vehicles get pretty good mileage with small displacement turbo engines, that could offset the size hit.
One thing that would never fly over here is the mandatory scrapping of engines in Japan, still running well... Huge market here and elsewhere for JDM (Japanese Domestic Market) engines with very low miles. As others have said, it is amazing to what folks figure is normal in a PU truck today... 0-60 faster than many BMW cars were not so long ago, the size of a tank, and nearly as tall. Can you imagine most folks under 50 who even know/have ever driven one with "three on the tree"? Boy do I miss my 1990 Mazda B2200 PU. Manual transmission, about 100 HP, and could carry a full sized washer and dryer in the bed at the same time. Perfect size, easy to see out of and get crap out of the bed. I hear Ford is planning on releasing a PU truck that is smaller than the new Ranger, and I can't see how it does not sell.
There seems plenty of folks are asking for such things (even a compact El Camino type 'truck'/BRAT sorta thing would be nice), say like the one from Hyundai I have seen, and other makes available in other countries. I still temper this with the Honda 'Ridgeline effect'; not looked on as a 'truck' even in AWD to the rubes, FWD in non AWD trims, a bit pricey IMO, and does not have body on frame construction. Even so, it still covers 90% of what 'real' trucks can do, and I love reading stories from 'truck guys' who feel ashamed admitting how nice an RL is after they drive one. Jesus, peanut brittle ego anyone?
So, make me a compact truck where the damn thing is simple in design, plain, easy to clean, and functional without all of the gadget and tech shit... And not cost a zillion $$$... Yeah, impossible dream I know, but it was a reality not so long ago.