Rosso Corsa is cool indeedRosso Corsa is also my preference, but with the full black interior.
Pricing is by request, roughly $5k (USD) for paint.
We need the updated version of the “BMW Individual Manufaktur Product and Pricelist” to know more. Latest I see online is the January 2021 version, which does not include the i4.
interesting that the old "carbon black" is available as individual option for the i4...would have chosen that over black saphire if it was available as standard