GM Günther, and welcome to TM.
I have many friends in Germany from my days of working at Vodafone, but sadly I never learnt many German words as my friends were always to kind and would speak English.
last year, 2020, I had planned a trip with my son in my Morgan along the German Castle Route, then south along the Romanic Road. Sadly we coould not do it because of COVID. There is a very strong German Morgan Owners Club, who provided me with lots of information. Let's hope we will get the chance to do it, maybe in 2021 or 2022.
May you have many (s)miles (or should I say kilometers) in your +8.
Steve