I think you are totally right..... it either:Mines black! On a Bora V5 if that makes any difference. I find the black sticks out like a sore thumb worse as everything else up there is the grey/beige colour.
thats my theory EXACTLY.i dont find it a problem with my interior being beige and the mirror being black. i dont see the problem. looks ten times better from the outside though as before your eyes were just drawn to the mirror through the windscreen.