Poop on a stick. You are right, you cant get tdi/quattro drive. My bad.
I participated in the. Leavenworth euro cruise this year and saw a white a3 tdi, slammed on kw coilovers/hre 19" wheels that had the awd and quattro sticker on stock rear glass, and tinted in. Now come to think of it, switching out the rear window would be pretty easy.
goes to show, dont believe everything you see/read. Sorry guys.
and another thing, FYI. There is no such thing as a "TDI with the S-line package"
all TDI A3's have the s-line package.
the only options on the A3 TDI are the sport package (18's vs. 17's, lowered slightly, nicer front seats, and I think sway bars are diffrent), and the premium plus package (HID's, heated mirrrors, heated seats, and the panorama sunroof)