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 | 19 | €44,354 | €299,999 | 57.1 |
| Audi RS2 | 30 | €40,000 | €125,000 | 64.7 |
| Audi S2 | 0 | — | — | — |
| Audi RS4 B5 | 41 | €15,500 | €92,900 | 60.6 |
| Audi RS4 B7 | 33 | €16,494 | €63,800 | 53.2 |
| Audi RS4 B8 | 23 | €11,000 | €84,999 | 56.3 |
| Audi RS4 B9 | 127 | €10,305 | €119,690 | 58.9 |
| Audi RS6 C5 | 54 | €13,999 | €130,000 | 44.9 |
| Audi RS6 C6 | 34 | €21,500 | €69,900 | 52.2 |
| Audi RS6 C7 | 128 | €29,179 | €171,488 | 54.3 |
| Audi RS6 C8 | 281 | €50,000 | €482,590 | 58.7 |
| Audi RS3 8V | 732 | €18,418 | €98,500 | 50.3 |
| Audi R8 | 895 | €30,935 | €244,230 | 66.2 |