Autobus ETN Concept Niccolo bus mod compatible with Euro Truck Simulator 2 version 1.54.
It appears that the “Autobús ETN Concept Niccolo ETS 2” you are referring to is likely a bus mod for the game Euro Truck Simulator 2 (ETS2), rather than a real-world bus model operated by ETN Turistar.
My previous search about ETN Turistar showed it as a luxury bus service in Mexico, but no specific bus model named “Concept Niccolo.” However, the addition of “ETS 2” in your query strongly suggests a connection to the popular truck and bus simulation game.
Fraines on ETS2 1.54 - No Damage Mod V1.0