Kubota L3830GST, B7500HST, BX2660. Formerly: Case 480F LL, David Brown 880UE
Show? I dont know of any situation that would need the traction offered by duals on all corners, but that would use R4 tires rather than R1s. Looks like they have a loader for it and a place to hitch a wagon to the front.
I think I read in my owner's manual for my M8540 (which is a bigger sibling of the M5040) that duals were not allowed. My guess is the axles cannot handle the stress.
Tis a mower with wings The HID Systems Inc. / Home web page is for high intensity discharge lighting which it what on the corners of the cabin roof so its a sales promo web picture.