MTH finally is shipping the scale wheeled Dash 9s. Two years ago several of us on this forum asked MTH to upgrade this model (first released in 2001) to fixed pilots and full hand rails and with MTH's vastly improved version of the GE Hi-ad truck MTH uses on AC4400 and ES44 models. These Dash 9s have those improvements as well as a more detailed fuel tank. They are PS3.
There are other improvements we would have liked to make for more road-specific models, but MTH presumably wasn't willing or able to go that far. (Thus I must suffer no gull wing cabs and misplaced ditch lights among other things).
In all events, the scale wheel models are made in small quantities, so anyone who didn't order but might want one shouldn't wait long before trying to find one.
RM