With ref to the trident logo, the company that make them do not offer a copy of the official trident logo, but are happy to embroider any art work that the person ordering supplies. I've no idea if this is a genuine legal loophole. But as a multiple Maserati owner (and given that official mats for this car are no longer available), I'd think Maserati would be pleased rather than angry. After all, it's in their own interests to have their older cars being preserved and used.