Further to my last entry... My rear wheel arch trim was damaged, ordered one from Fiat, only to be sent a shiny black trim (mine is a grey metallic finish colour) the part was sent back and I asked for the correct one to be resent, only to have the same part returned. After many phone calls and getting different answers and submitting a complaint to Fiat I was told my particular part wasn't made anymore, after 2 years?! I was told only shiny black available and it would have to be painted, if this wasn't bad enough I asked what paint colour was needed for the body repair shop who was doing repair, and was told they didn't have one?! Nothing more can be done, just a brief apology and nothing more, incredible.
Therefore a word of warning, if you have a Fiat 500L trekking or a model with similar colour ie metallic grey wheel arch trims, beware you are in for a battle, my body shop did a great job in the end, however it took many hours and attempts to get the colour and texture correct.