Rhino 9: SubD feature requests, if you get bored

sadly there is unlikely to be a “trimmed” subd option anytime soon. Converting to NURBS for your trimming needs is the best we can offer atm.

you can with some effort make a whole car from subd as shown here-

it’s a masters class in topology to do so, but it very much can be done.

doing so is a daily occurrence in the video game and film world.