Isn't the bad collision detection native to the Torque Engine?
Like, if Badspot wants to update the physics he has to recode Blockland in an entirely different engine.
Badspot knows the vehicle physics are bad, they were bad from the start.
If it was possible to fix them, I think he would have already done so, prior to adding esthetic shadows.
At least he would have improved them when he was coding the speedkart gamemode.