I bought a Miele S8 off marketplace about 5 years ago. After I bought it, I did some research and found the same thing you did. The S8 was the most powerful vacuum that Miele ever made, and used a motor made in Germany. After that model they replaced it with the C3 that is almost identical except uses a Chinese motor.
“We’re here about the homicide. Where’s the body?”
“Nope, ain’t nothing here except 60 litres of strawberry smoothie”.