>I'm in southern Germany at the moment, visiting my girlfriend's family. The winding roads in the Schwarzwald area are absolutely amazing to drive,

I learned to drive there. Recommend this route:

Sasbachwalden > Seebach > Ottenhoefen > Allerheiligen > Ruhestein

https://www.google.com/maps/dir/77887+Sasbachwalden,+Germany...

Have fun! The race is always won on the corners, not on the straights ...