Do you mean the meaning of PDK? I think that it means
Porsche
Doppel
kupplung which is the double clutch. Kupplung is the clutch.
Anyways, I am not saying that they are not nice cars. They are just not perfect. I like also that they are using Panasonic computers for their PIWIS diagnostic system. Not a coincidence that they went with a Japanese manufacturer for their workshop tools