Great models, and I needed that row crop tractors :)
Since it`s a beta I will share my thoughts on what could be done: Foldable beacons, opening doors and windows, and lighting in the instrument panel.
Another thing to think about: there is 4 mirrors on it, no matter how good your computer is the mirrors will take turns on going black, so, a 3 mirror model, or even 2 mirrors would be better, the mirrors going black is very annoying, and it doesn`t seem like Giants will give you the choice to choose yourself, I have a more than good enough computer, but Giants decided for me...or all of us, what is best for our computers..