| Audi A6 | Mercedes-Benz GLS | ||
|---|---|---|---|
| Live listings | 87 | 421best | |
| Price range | $4.5K – $63K | $17.9K – $169K | |
| Median price | $20.4Kbest | $84.5K | |
| Median mileage | 65,920 mi | 7,805 mibest | |
| Great deals | 13 | 114best | |
| Biggest deal | $6.7K under | $39K underbest | |
| Updated | 2026-08-20 | 2026-08-08 |