Rubber tires should be added to replace repairing wheels in modern vehicles and use them to make rubber wheels. They could be made by Industry in the electric lathe out of rubber and sulfur, like the current recipe for rubber wheels, then added into the recipe for the vehicle. When they break they can be repaired with rubber and a large deduction in integrity, making them a large garbage contributer, like in real life. As an added bonus, they could be burned in a blast furnace, making CO2 but completely removing them. This would make more sense than what's currently in place as ECO is an "educational" game and this would add to the "bad for the environment but we need it" that the game shows.