It's been for new Dostos. The Dostos DBuza 747 and DABuzfa 760 would fit best for the implementation of the route. Since the route is laid out between 2013 and 2016, the 612 is also there for and just these Dostos regularly.
Excellent idea and that should prevent DTG from reusing Dabpza 780 Cab car 766.2 & 767.2 on Dresden Chemnitz (Karl Marx Stadt) Tharandter Rampe route with DB BR143. Destination sign it needs to say RB59 Flughafen Frankfurt RB 59 Gemünden RE1 Aachen Hbf RE1 Hamm Because if Tharandter Rampe is owned you get DB BR143 to run Main Spessart Bahn Schnellfahrstrecke Köln-Aachen these routes have 160 kmh segments which would make DB BR143 Struggle with the schedule due to its max speed being 120 kmh
driverwoods#1787 Yes, it is enough to slowly bring the same Dostos. We always got the same Dostos with 5 DLC, it's time for new ones. But as I know DTG, they just ignore it.