New to Lexus, had a few questions about AWD:

The G-Spider wheels look hot. I would prefer IS350 but need AWD due to weather conditions. I believe the 18’s are not even an upgradeable option on the IS250 AWD, is there a particular reason for that? If I did buy the G-Spider’s as an additional accessory and mounted them during the summer months would that cause any problems with suspension or other components? Any information would be appreciated. Thanks.

Anyone have pics yet of Tungsten w/ G-spider’s?

 

I don't think it would harm anything if you just mounted the Spyder wheels with summer tires during the summers months. Did you pose that question to your local Lexus dealer? See what they say.
Will