I was going to order a white interior but when I went to the showroom and had a look in person the white was just way too bright for me. I also arranged for an overnight test drive, and this was a red M3 with white interior which cemented my thoughts. Unfortunately, it felt like I was in an upmarket private hospital waiting room waiting to have a procedure!
The black interior can feel like you are in a funeral home but easier for me to live with. Wish Tesla did an in between like a grey or combo.
My advice is to see it in person on a bright sunny day and see how it feels.