Thanks. I've seen those specs before. Unfortunately, their numbers don't add up since they appear to be heavier than real world measurements. Maybe they're trying to sell me their wheels?
For ex, they are claiming 39 lbs for the rear Ubers. But real world measurements using a digital scale by iTesla/OutofSpec weigh this to be 68.8 lbs (tire/wheel/TPMS). The tire they had on were Pirelli PZero RFT's which have a spec weight of 33 lbs per Tire Rack. 68.8 - 33 = 35.8 lbs between the wheel and TPMS. But I guess in retrospect, 36 vs 39 lbs = still heavy. They claim the 19" Gemini's to be 30 lbs. That seems on the high side as well.
My bottomline is, never trust anyone who's trying to sell you something. (not saying they're lying, but just don't trust at face value)