Throughout automotive history, there have been a few constants. Two of them are that in German cars, the most desirable options are sport seats and BBS wheels. Those also happen to be the only optional features on the Audi V8 Quattro.
I found one - just one - listing on craigslist referencing the Audi V8 in any capacity, and it so happened it was a parts yard in Georgia, nestled up against the South Carolina line, that specialized solely in late 80s and early 90s Audis and Porsches. I've seen photos of this yard shared online in the past, and it's littered with Turbo Quattro Wagons, Quattro Coupes, Porsche 928s and 968s, and numerous other desirable models, like the relatively obscure 4000 S Quattro.
Turns out they had two V8s on the property, one of which had a matching gray leather interior with the sport seats and numerous sets of the 15x7.5 BBS wheels that came on the 93 models along with the 200 Quattro sedan. This should really do it for OEM upgrades, and of course, this is all being done before I even drive the car any measurable distance because that's just what I do.