What about this scenic route. It's already been created fully for the old train simulator and has become a 3rd-party-DLC for TS2017 covering the part between Nuremberg and Ingolstadt (high speed route) This route would create a great base for ICE tractions like BR 402, 406 and 407 with regular highspeed up to 330kph. It's also an interresting route for regional trains with the "old" München-Nürnberg-Express using BR101 and its own "Steuerwagen" BR 101 stw. or the new Skoda-traction BR102 and its duplex units