Lots of trim parts are held on with 3M adhesive tapes. Factory and aftermarket both do the same. Personally, I think exposed CF trim is a style fad that's fading, but to each his own. A lot of the cheap styling parts are just fiberglass with a single layer of carbon fiber on the outside to achieve the racy look. And these days a lot of people don't even bother with composite parts. Instead, many people are using carbon fiber pattern vinyl to achieve a similar look. Dry carbon (prepreg) parts are for serious racers or for people who want bragging rights at the car show because the cost is far beyond what most FIAT owners are willing to spend.