Paul, I am a bit lost... I thought I had bought a 6 pack of Keller Sylvaner Feuervogel 2019 for 156£ (if I remember) and it is now on auction for 400€ a magnum. What is different apart you have twice more than in a bottle?
Antoine, the auction wine is a Feuervogel Reserve (from a special parcel). But yes, it does make the "regular" Feuervogel look very reasonable (a wine that was not oversubscribed on Sebastian's opening offer, btw, for those who complain about the impossibility of buying Keller).