Tungsten Ceramic Coating & Ultimar Paint Protection

[amelen]

I have a Taycan Turbo incoming (delivery in a few weeks). The dealership offers Tungsten Ceramic Coating coating & Ultimar Paint Protection. I have never used either on previous cars. Does anyone have experience with either? What should pricing look like for them and are they worth it?

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[F16HTON]

Google is only coming up with one manufacturer for a Tungsten Ceramic Coating. This leads me to believe that perhaps there is not much widespread use.

Any warranty issues may be difficult to navigate. I would not have a dealer be the intermediary between myself and any aftermarket products/services.