I took delivery of my 7.5 Performance on 1st December. By the time I'd had it
only 4 days both rear discs were scored (just like in your photos) and severe rubbing noise from pads when braking. Took it back to dealer and the Service Manager said "oh yeah, this is a known problem with these GTI PPs..... we get about 5 or 6 a year with this and we replace them under warranty - it's a factory quality control issue"
I couldn't believe what I was hearing............. if you're going to have a poor quality part fitted, make sure it's not the frikkin brakes eh?
??
Anyway, I had them replaced under warranty the next week and all is well. Car has covered 11,000 miles in 4 months and the brakes are fine. I contacted VW UK to raise the issue and get them to "sort the factory out"..............no reply.
Dealer gave me some goodies to send me on my way but it seems this is a known issue. Front brakes are fine.