OK--I worry about this stuff on my bicycles, now it is starting to invade my thinking about cars as well. I am thinking about my 430 spec, and trying to decide on wheel choices (Enzo style versus Challenge Stradale style) and brakes. Does anyone know what a new 430 wheel/tire weighs, in both of the above styles? Per corner (or total), does anyone know the weight savings with the carbon ceramic brakes. More data to contribute to my analysis paralysis. Thanks.