So I wanted to check what would it mean to switch from OEM 18" (style 209 + Brid. Duelers RFT) to OEM 20" style 336, weight wise. Well guess what:
Altogether, front adds 15.4 lb (+17.4lb wheel, -2 lb tire), rear - 22.7lb (+18.7lb wheel, + 4lb tire) per corner! Switching to 20" non-RFT saves 8..9 pounds, but with 3rd row seats it's hardly an option. I know image is everything, but damn - that's a lot of extra unsprung mass!