How about using a correctly designed diesel motor, that doesn't overheat, on the larger machines?
Put more holes in the tub, strategically placed, so that it doesn't hold oil and diesel. FIRE HAZARD!!! Also, the engine oil plug does not line up with a hole in the bottom plate, so it makes a complete mess when changing the oil.
Have a dedicated QA hydraulic circuit, so that it is permanently connected.
A little wider stance and more ground clearance would be good on the 1460.
A factory cab option, even if it is just a soft cab.
The operator seat on a 1460 is really bad. How about a real suspension seat?
The steering wheel in the 1460 is of lower quality than a kid's toy. Fix it!!!
RPM gauge would be nice.
Glow plug option on diesels. PT sells plows and snowblowers, but they aren't much good if you can't start the machine in cold weather......