Here are 2 issues that have been since 1.0 -Vehicle speed remains unchanged when in overheated stated. If you drive at full speed you will not slow down in overheated state, unless you slow down caused by other conditions, the max speed lowered by your overheated state and the values in the config will go into effect. This is either a very dodgy feature, but I'm guessing its a bug. -Vehicle heat caused by firing a weapon overflows. When shooting a weapon that requires a certain amount of heat, only the amount till 100 total vehicle heat is deducted, the rest overheats and is not taken into account. This causes tank drivers to be able to shoot a nuke immediately after their heat dissipates. To over exaggerate this effect, if you would be able to equip 2 nukes and shoot them at the same time (you cant equip 2 nukes, but this is the extreme) you would be able to shoot both when having only 99 heat, while the configs state that a nuke requires a certain amount of heat to shoot. Hopefully these can be fixed to create better engine and weapon balance.