All metallic colours should be free. Mine is mythos black and I didn’t pay extra for it. The only colour which isn’t free is the special purple one.
thanks for this @masky I didn’t think it sounded right so I asked them to double check before I order next week. I particularly liked it in white. I’m still mulling about the lack of electric adjustments on the seats. It’s the only negative ( for me) but it’s quite a big one.