I think the Hydraulically operated 3 Point Hitch is one of the factors differentiating between a Garden Tractor and CUT/SCUT?
I have the BX2350 and a Ford GT75. It is pretty obvious which is which.
I can bolt a lot of gizmos and attachemnts onto the GT75, but it will still be a Garden Tractor. But that doesn't make it bad, just engineered for different usage.
In recent years the lines have gotten quite blurred between Garden/SCUT and even CUT/SCUT.
Case in point: My Ford1210 was considered a Compact Tractor back in the mid-80s. 3 cyl deisel, 3 point hitch, geared tranny, no steel frame, the tranny housing was the frame.
So, I bought my BX2350, brought it home, and did a side x side comparison.
Wheel bases were virtually equal. OAL was about the same. Seat height the Ford was 1" taller than the BX. Both were 4wd, the new unit was hydro, the Ford was gear shifter. Both have Hi Lo gear range. Both have Diff Lock pedal.
The Ford1210's 3 cyl. diesel was rated at roughly 17hp, with about 13PTO hp. The BX is 23.5HP with 17PTO hp.
The BX looks much more compact than the 1210, but they were surprsingly similar sitting side x side when the tape measure was used.
My conclusion is that the BX2350 was called SubCompact based on some term developed by a marketing group. It is Kubota's way of differentiating the BX from the B series. So the BX's were called SUBCUT, because the term existed, where the Ford1210 was called Compact, because back in the early 80's, that was the only distinction they had made for a category between Garden and Full Size tractor. Just as the lines are blurred between Garden and SUBCUT, So are the lines between SUBCUT and CUT.
The Case 444/446/448 series is one of the age old models of Garden tractors aimed at the small hobby farmer/serious gardener , when there were really only Full Size tractors, and Garden tractors. It bridging the gap, giving some big tractor features, in a small package.
In some cases, we are talking about marketing terminology, such as with the Ford1210 and BX comparison. What makes my BX a SubCUT and the Ford1210 a CUT? A marketing term. But the BX has a cup-holder, so... game, set, match.
This is just my very general opinion, and a fairly quick way to draw a line, if we need to do so:
-A Garden Tractor doesn't have a 3 Point Hitch, more often the use a sleeve hitch or other proprietary fastening system for attachements.
-A SUBCUT usually has a limited CAT1 or CAT 0 3 Pt. hitch
-A CUT has a full-on CAT 1 hitch.
That is just a quick, off-the-cuff manner to make distinction between them. I'm sure there about 100 other factors that could be analyzed.
With all this said, the Case 446 is fine tractor, a fully-loaded Garden Tractor, very capable within it's range of operation. It can probably be looked at as a "classic".