I have a new s3 sud 4 door passenger side rear quarter panel. I think I may be a genuine Alfa panel, the label is very faded but I think I could just make out the logo, but not 100% sure.
It's very well constructed, with the fuel filler aperture and under flap innards all included and made up with the panel, it's a full quarter with wheel arch and door jamb. Some very light storage corrosion being picky, nothing to worry about.
Give me a shout if it's of use, I'm sure we will work out a fair price is someone needs it for a restoration.