If ya go uphill, ya gotta go downhill. Anyway, bad, bad trebuchet03, Crrn it isn't linear. And I didn't mean that Crr goes up with weight, I mean it's easier to address than weight. What's going to be easier, slapping a set of RE92s for a halving of Crr or gutting 1000lbs out of a 2000lb car? If ya do both then it's a matter of diminishing returns and like ya said, ya might as well address aero.
