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 | 22 | €52,146 | €199,000 | 57.9 |
| Audi RS2 | 32 | €40,000 | €125,000 | 61.8 |
| Audi S2 | 0 | — | — | — |
| Audi RS4 B5 | 56 | €13,680 | €92,900 | 61.8 |
| Audi RS4 B7 | 83 | €6,800 | €116,008 | 52.7 |
| Audi RS4 B8 | 45 | €11,000 | €84,999 | 53.6 |
| Audi RS4 B9 | 263 | €10,267 | €120,078 | 61.1 |
| Audi RS6 C5 | 63 | €11,999 | €130,000 | 43.6 |
| Audi RS6 C6 | 53 | €16,041 | €85,000 | 50.8 |
| Audi RS6 C7 | 262 | €16,419 | €172,252 | 56.4 |
| Audi RS6 C8 | 558 | €50,000 | €484,738 | 60.6 |
| Audi RS3 8V | 1193 | €17,719 | €98,500 | 50.0 |
| Audi R8 | 1070 | €26,000 | €339,899 | 66.1 |