European Law states that all light passenger vehicles registered on or after 1st August 1998 require a type approved towbar tested to EC94/20 and towball with suitable D&S value. This is not retrospective and does not affect any vehicle registered before this date.
Fitment of a non type approved towbar on a vehicle registered on or after 1st August 1998 could result in prosecution and in the event of an accident the vehicles insurance could be invalidated.
So anything registered after 1/8/98 needs a type approved towbar, and approved to tow by the car manufacturer. Which in the case of the Maserati Coupe, is not approved by Maserati and they do not have pre-designed tow bar pick up points on the chassis for a tow bar.
Can you really imagine say a 2 tonne caravan hung on the back, and doing a hill start with the cambiocorsa gearbox!!!