Audi S6 vs BMW 5 Series
The BMW 5 Series starts about $20,950 lower, returns better fuel economy, carries more luggage and makes more power than the Audi S6. Here is how the two compare on the numbers that decide most purchases.
| Measure | Audi S6 | BMW 5 Series |
|---|---|---|
| Price rangeOriginal sticker prices across all trims. | $70,900–$81,495 | $49,950–$79,900✓ |
| Years covered | 2015–2025 | 2015–2026 |
| Fuel economyBest figure quoted across the range. | 22 mpg | 28 mpg✓ |
| Power | 450 hp | 523 hp✓ |
| Cargo space | 14.1 cu ft | 18.7 cu ft✓ |
| Seats | 5 | 5 |
| Fuel types | Petrol | Petrol, Diesel, Hybrid |
| Drivetrains | AWD, 4WD | RWD, AWD |
| Safety rating | — | Not rated (NHTSA) |
| Reliability | — | — |
| Insurance (yr) | — | — |
| Resale value | — | — |
| Recalls | — | 4 recalls (2025) |
Audi S6 vs BMW 5 Series: common questions
Is the Audi S6 cheaper than the BMW 5 Series?
No — the BMW 5 Series has the lower entry price. The Audi S6 spans $70,900–$81,495 and the BMW 5 Series spans $49,950–$79,900, based on original sticker prices across all trims.
Which is more fuel efficient, the Audi S6 or the BMW 5 Series?
The BMW 5 Series is more efficient, quoting 28 mpg against 22 mpg for the other.
Which has more cargo space, the Audi S6 or the BMW 5 Series?
The BMW 5 Series holds more, at 18.7 cubic feet versus 14.1.
Which should I buy, the Audi S6 or the BMW 5 Series?
It depends on what you weight most. The BMW 5 Series starts about $20,950 lower, returns better fuel economy, carries more luggage and makes more power than the Audi S6. Here is how the two compare on the numbers that decide most purchases. Cars4Real shows both cars' full trim tables, owner reviews, safety records and depreciation so you can judge against your own priorities rather than a generic verdict.