With help of a forum member on Seat-Online.nl, I was able to find out that Andreas Kawula hand built the magnificent supercharged V8 in my CLS55 AMG. His signature is very hard to decipher, but the internet delivers again and verified that his name is indeed Andreas Kawula.
Fun fact: only the 55 & 63 engines were hand built. So a big thank you from the Netherlands, Andreas 🙂 !
See all CLS55 AMG pictures here in my Google Photos album: https://photos.app.goo.gl/6SP5PFAUXCqanoSX9