KresoF1:
According to German price list(and new catalogue) new GT3 RS is available only in 3 colors.
Grauschwarz is Sonderlackierung option.
You can not order it without stickers(wheels, front intake etc. are painted any way).
Wheels are available in Silver as non-cost option.
Too bad... plain white would have been my choice, the last thing I need is to draw more attention from the police.