UPDATE: (https://thangs.com/designer/lauritz221/3d-model/1170442 ) added a new version (V2) with more support and a real tight fit for cans, especially good for the tall 500ml cans so there is no risk of them tipping and spilling.
Had a hard time finding a printable cupholder for a mk3 golf that wasnt in the doorpocket, or hang so low and was so big that you hit your knockels on it every time you shifted gears, so i tried to make on myself.. this is revision 3 of my own try and more will probably follow as tall cans are a bit wobbely in it but it hasnt been a problem yet.
Now about the cupholder: the cupholder hangs on the front of the ashtray, it does slightly obstruct the rearwindow defrost button (and what other buttons you might have in that row) but it can still be pressed.
Ive printed in 3DO steel blue PETG Bambulab A1 0.4 nossle 0.16 layerhight 3 walls gyroid infill Printed upside down and used tree support for the bottoms of the cupholder, nothing else needs support.