Carplay2 seems cool, but if it takes away my ability to just jump into whatever new car with my iphone or android phone and use aa/carplay I don't want to lose

Carplay2 seems cool, but if it takes away my ability to just jump into whatever new car with my iphone or android phone and use aa/carplay I don't want to lose carplay. I have 3 cars with carplay and I don't want to have to set all of them up and lose portability.