Swapping ID is essentially ringing, but many will say they can't see the harm in swapping all the bits of say an RS S2, onto another RS S2 and what difference does it make?

The problem comes in when someone sticks all the RS bis on say a 1.1 pop shell - essentially you are paying RS money for a look-a-like !!!

Or, that a lovely mint RS goes missing and gets a fresh ID off a rotten car.