To save power heat and lag, I think it the intercollision should automatically be off when there is one vehicle, and then when you want another vehicle it switches on
BeamNG isn't intended for craptops and decades-old gaming towers; it doesn't cater for the lowest common denominator. Intervehicle collisions can be turned off manually, so let the minority spend literally 5 seconds of their time turning it off so other people don't have to think about it.
