[s-cars] Rotor hats and rings

[Taka Mizutani]

Eric-
Losing weight at the rotor hat is not going to significantly affect thermal
mass, so
if you can afford the $$$, I'd say go for the 2-piece rotors, fixed hat,
with directional
vanes, no cross-drilling, if possible.

AFAIK, Igor is not tracking the S6, so this warping issue is from street
driving. That said,
I wonder what kind of driving he's doing to warp rotors on the street. I
never had any issues
with similar boat-anchor MBZ rotors, but maybe the directional and
differentially vaned
MBZ rotors either have better metallurgy (these were OEM MBZ with MBZ labels
and part
numbers) or better cooling or both.

I've had no warping issues with boat-anchor STi rotors either, similar size
(326x30mm).

Taka