I *think* there's a difference between US and Japan-production vehicles, but I don't know which is harder/softer.
The paint on my Japan-built MPV is nice and medium but *thin*, as in you gotta be careful how much clear you take off. And the non-clearcoated areas are even worse, they're cut-throughs just waiting to happen (gee, guess how I know

).
I usually use clay for paint transfers and only resort to polishes/etc. if that doesn't work.