Not specific to 100D, but very happy with my mutli-coat red and gray upholstery. The gray is no longer offered, of course, which troubles me. We might like cream, but I have yet to see it in person so cannot say.
Observation: In rain or dim lighting, all the dark colors (gray, black, blue) look the same -- just blah! So I would not consider any of those. Plus they look really dirty when they are dirty, like on a winter day with snow or salt or slush adhered to them. Red or possibly silver would be my only choices. (Normally I do not care for silver cars, but Tesla has an especially pretty silver paint.)