I really liked the idea of FKrueger89 to implement an iPhone Magsafe Holder in my car:

https://www.printables.com/model/225145-magsafe-phone-stand-for-bmw-cup-holder/comments/364302

Because of the deep Cupholders in my car his design didn't quite work, the phone wouldn't fit…

So I quickly designed a cupholder extender.

Later on I also drilled a 16mm hole in the upper sidewall to route the cable underneath my middle console.

This is an updated 3mf file with a 16mm hole included, the hole size is customizable thanks to the feature in prusaslicer.

I use this successfully for over two years in my BMW G30, though it will fit a lot of other cars as well. :)