This was for my roommate, but I am also uploading it because there was not much else already up for the S9 in a car.
The "case" model was designed to fit with my roommate's case, your mileage may vary. The inside is 71mm wide and 9mm deep.
S9+_car_holder_naked.stl | 251.3KB | |
S9_car_holder_case.stl | 240.4KB | |
S9_car_holder_naked.stl | 242.3KB |