Audi's RS models and the original Ur-Quattro represent the pinnacle of all-wheel-drive performance. The RS2 (built with Porsche), early RS4 and RS6 are already established collectibles, while later models are following the same trajectory.
| Model | Listings | From | To | Avg Score |
|---|---|---|---|---|
| Audi Ur Quattro | 24 | €50,900 | €234,999 | 67.2 |
| Audi RS2 | 18 | €40,000 | €125,000 | 67.3 |
| Audi S2 | 0 | — | — | — |
| Audi RS4 B5 | 34 | €21,900 | €880,000 | 56.1 |
| Audi RS4 B7 | 41 | €15,250 | €99,990 | 58.8 |
| Audi RS4 B8 | 22 | €11,000 | €52,690 | 51.7 |
| Audi RS4 B9 | 266 | €28,356 | €166,105 | 65.5 |
| Audi RS6 C5 | 90 | €7,789 | €200,307 | 32.7 |
| Audi RS6 C6 | 40 | €29,899 | €85,000 | 57.9 |
| Audi RS6 C7 | 183 | €17,091 | €184,381 | 61.8 |
| Audi RS6 C8 | 657 | €49,900 | €468,799 | 62.8 |
| Audi RS3 8V | 308 | €18,500 | €99,800 | 45.8 |
| Audi R8 | 889 | €26,000 | €261,368 | 69.6 |