[Hi_Fi_Guy]

The most popular car mods tend to enhance performance or solve an irritating problem. Electric A/C, brighter lights, a better shifter, faster acceleration, etc. Something like digital gauges seem like nothing more than a cosmetic change at first glance but as we see with the race car variety they can serve a purpose. I don’t want them on my old 911 but if somebody were to come up with a retrofit gauge package that made the car faster, more reliable, or solved an existing issue then people would line up.

As example, a gps driven speedo with no need for a speedo cable and accurate no matter what wheel/tire combo you run. Just an example of something popular outside of Porsche circles but other similar solutions could create demand.