We need to get a glass roof and a sunroof Model S with the roof rack and figure out why the roof rack supposedly "can't" be installed. I think Tesla is lying to us and using this just as an excuse to extort more money from us. The hole in the roof is the same size for both glass roofs, isn't it? Tesla is not going to bolt the roof rack directly to the glass, are they? Then what is the problem?
At any rate, with any kind of roof, I am sure a mechanic can figure out a way to install a non-Tesla roof rack for far less money.
Things like this make me mad. Tesla needs to remember that WE, the CONSUMERS, are holding the fate of their company in our checkbooks right now, and trying to squeak the sale price a little higher on us by claiming certain things "are not available" without a full explanation is not the way to do it.
And how often do you really need a roof rack anyway? I have never needed one.