If you read German, the wikipedia.de article on the Franken-Thüringen-Express regional service offers an account of how in 2017 some 6 push-pull RailPool Vectrons were being used in place of 442 Talent to comply with required ETCS. Now BR 1462/4462 are available. Maybe some Zug.de fan will get the article translated into English on wikipedia.
Google translate is available in the google search if you ask google for that wikipedia article: " Since December 2017, class 193 locomotives ( Siemens Vectron ) have been used on the Nuremberg–Bamberg–Coburg–Sonneberg line, running with five double-decker carsof type 780.1 and 785.2, whereby, due to the lack of ETCSequipment on the control car, there is one locomotive at the head of the train and one at the end of the train wrong. DB Regio Franconia rents six locomotives from Railpool for this purpose. "
