Please go ask Spain for a license so you can make a high-speed route, I don't care what it is but we want a Spanish route in the game, there are people asking for it, please
A 3rd party would have to bring it and get the license along since dtg focus on the big 3 because they know it best
Easy LGV Perpignan Barcelona 110mi 180km. That way it has the New Renfe Licence with Existing SNCF Licence. One odd thing about this route is that Figures Vilafant has a VGA shed which meant your Talgo S106 Avril must slow down and change voltages. Freight is S252 all the way to Perpignan from Barcelona.
