Same dealership, I was informed about the $995 "dealer prep turbo cord" when I put down my deposit but was under the impression it was optional, as I remember asking my sales rep at that time if I had to decide right then and they said it wasn't an immediate commitment, I could decide later. Then once the car arrived and I was signing paperwork, the itemized price sheet included said package, and the sales rep told me it was mandatory, all the cars that came into their dealership got the "prep" treatment and I would need the "turbo cord" for faster charging at home. (They quoted the cord as about $700 in value? I explained it was possible to get an L2 charging cable for much less than that. Them: "Well, but this is MINI-branded.")
I resigned myself to paying for this but was also *extremely* annoyed, which I did not bother to hide, and in the end they offered me the windshield protection plan in exchange for the turbo cord. (So: I couldn't get out of paying the $995, but now that cost covers the door edge protection, etc. and free windshield repairs and replacements.)