There are plenty of German YouTube channels dedicated to their most luxerious product especially from a car tuning perspective.
In the early 90ies and late 80ies it all started in a different way. Basically, the starting E pills boom blew German minds and many of those being the respectable Polo Shirt students in daylight had a second identity hiding in their suburbia parents home garage for their night time party life. Many of the female SozPäd (the German version of Britain's PPE) students coming over to understand the side effects of amphetamine and steroid use the very disatisfying way, did not know what they did at night:
Bruce Wayne and Batmen German Tecno style based reformed SS lifestyle. Drugs and Cash.
Scientists at daylight and Bomber Pilots at night
University Diplomas and "GFK Bomber" Cars