1.8T Swapped 1995 Audi 90 for sale on BaT Auctions - sold for $5,750 on March 23, 2017 (Lot #3,580)
Audi 80 - Wikipedia
Tested: 1980 Audi 4000 Proves to Be Not Quite Ready for Prime Time
New and used Audi 80 for sale, Facebook Marketplace
STL file Audi 80 / 90 / 4000 B2 Cabin Air Filter Box - 321819099A 🚗・3D print design to download・Cults
New and used Audi 80 for sale, Facebook Marketplace
Capsule Review: 1984 Audi 4000 S quattro
Audi's foray into the luxury car market with the Nineties V8 quattro was a taste of tech to come
1989 Audi 80 / 90 / 4000 Market
Audi 80: Most Up-to-Date Encyclopedia, News & Reviews
No Reserve: Euro 1985 Audi 90 Quattro for sale on BaT Auctions - sold for $6,700 on August 20, 2020 (Lot #35,341)
Audi 80 / 90 / 4000 Market