This is a Cupholder for an BMW E36 Compact with an armrest.
I designed it to fit in the square hole between the shifter and the armrest.
The 67mm version can hold 500ml and 350ml cans (Beer, Big Energy Drink, ...).
I also Included a reducer for smaller 250ml cans with 54mm diameter (Small Energy Drink, ...).

I made it with some tolerance to be easily removable and put some duct tape around it to stop it from rattling (see last picture).

The Cupholder in the Pictures was printed on a Ender 3 V2 with PLA @215°/60mm/s.

EDIT: unless you live in a very cold area: please print this with ABS/ASA or another temperature resistant filament, PLA will warp.