So.....
Fiat has shown off a concept car which is hugely customizable.
(http://www.fiatpress.ie/actionphp/thumb.output.php?src=IR%2F2019%2FFiat%2FHP.jpg&wmax=620&hmax=620&quality=80&bgcol=FFFFFF&type=2)
One of the features will supposedly be a library of parts that can be downloaded and 3D printed to customize the interior (and possibly the exterior?)
You can read Fiats press release FIAT CONCEPT CENTOVENTI: THE ANSWER TO ELECTRIC MOBILITY - Press - Fiat... (http://www.fiatpress.ie/press/article/fiat-concept-centoventi-the-answer-to-electric-mobility)
or the Verge have an article on it with more photos Fiat’s newest concept is a modular electric car you can almost endlessly... (https://www.theverge.com/2019/3/6/18253455/fiat-centoventi-customize-concept-modular-geneva-motor-show-2019)