I found this gem here and it basicly is a old old version of the game from way back in 2011. I have no information on who made it and how but it does show a T-90 tank with working tracks. Which, in my opinion, does give hope for the future! I understand if the technique used then is not possible to be used in the game as it is now but if it was possible then it should be possible now right. Fingers crossed.
Meanhwile download the SpinTank game here. Be aware this might kill your achievements. Don’t ask how it does that i just know it might very well do so.