This is a genuine Maserati Ghibli Foot rest Rubber/Nylon infill for a UK right hand drive car from 2014 onwards it's new and has only been removed from the packaging to take the picture, it does not come with the metal outer part as these are supplied separately from Maserati or an independent Maserati parts supplier, I ordered both bits but only needed the outer part in the end,
the cost of this part alone is £58.64 + postage from an independent Maserati parts supplier I'm assuming they are more if brought direct from Maserati.
the part number is 673000078 it may fit other models but you will need to check. 
I've included a postage cost but it may be higher for certain postcodes ie highlands and islands please ask before purchasing if your concerned.