This my first published model that I figured some people may want to use, This was printed in PETG (this was a huge learning curve for me as this was the first time using this material) I did not use PLA due fear of the parked car interior temps likely to cause warping and UV light, This car seat crevice holder is designed for the gap between the passenger chair and centre console / cup holder at about or less than 2cm.

I printed this through a Creality Ender-3 v3 SE, Hopefully some of these CURA profile settings will help:

General Settings

• Estimated time to Print: 3 days 2 hours (74 hours)
• Bed: 70c
• Temp: 240c
• Infil: 40% (no clue if recommended)
• Supports: ON
• Orientation: standing up, the cup or holder should be facing upwards

Settings as seen in-order on CURA

• Layer height: 0.2mm
• Initial layer height: 0.2mm
• Line width: 0.4mm
• Wall line count: 4
• Infill pattern: Gyroid (anything but Grid?)
• Print speed: 35mms
• Infill speed: 35mms
• Wall speed: 17.5 mms
• Travel speed: 120mms
• Inital print speed: 20mms
• Inital layer travel speed: 100mms
• Brim speed: 20 mms
• Retraction: ON / ENABLED
• Retraction distance: 4mm
• Retraction speed: 25mms
• Retract before outer walls: ON
• Avoid printed parts when travelling: ON
• Avoid supports when travelling: ON
• Fan speed: 50%
• Inital fan speed: 0%
• Support pattern: zig zag

Full disclosure, I am 100% an amateur 3d printer and most of my experience is with PLA, these settings are what I last saw on CURA and may not be every single thing needed for it to work, I modelled this stl through tinkercad, if you wanted to have a crack at making your model but CAD or blender is too intimidating I highly recommend checking it out.