| Audi S4 | Mercedes-Benz GLS | ||
|---|---|---|---|
| Live listings | 71 | 421best | |
| Price range | $27.1K – $47.5K | $17.9K – $169K | |
| Median price | $37.8Kbest | $84.5K | |
| Median mileage | 39,000 mi | 7,805 mibest | |
| Great deals | 17 | 114best | |
| Biggest deal | $8.7K under | $39K underbest | |
| Updated | 2026-08-27 | 2026-08-08 |