Can anybody definitively say when the apparent shortage of optional leather and/or chrome wheels will end? My dealer tells me that he does not know, and that cars with those options will have to wait for production. Although I am a first allocation order, I don't expect my car until late Oct. or Nov., is this realistic? I have ordered all options except smokers & XM. If onstar is available at the time of production, I'll have that included. Thanks!