Audi S8 vs BMW M5
The Audi S8 carries more luggage, while the BMW M5 starts about $21,300 lower, returns better fuel economy and makes more power. Here is how the two compare on the numbers that decide most purchases.
| Measure | Audi S8 | BMW M5 |
|---|---|---|
| Price rangeOriginal sticker prices across all trims. | $114,900–$131,295 | $93,600–$120,675✓ |
| Years covered | 2015–2026 | 2015–2026 |
| Fuel economyBest figure quoted across the range. | 20 mpg | 22 mpg✓ |
| Power | 605 hp | 717 hp✓ |
| Cargo space | 17.8 cu ft✓ | 14 cu ft |
| Seats | 5 | 5 |
| Fuel types | Petrol | Petrol, Hybrid |
| Drivetrains | AWD | RWD, AWD |
| Safety rating | — | Not rated |
| Reliability | — | — |
| Insurance (yr) | — | — |
| Resale value | — | — |
| Recalls | — | — |
Audi S8 vs BMW M5: common questions
Is the Audi S8 cheaper than the BMW M5?
No — the BMW M5 has the lower entry price. The Audi S8 spans $114,900–$131,295 and the BMW M5 spans $93,600–$120,675, based on original sticker prices across all trims.
Which is more fuel efficient, the Audi S8 or the BMW M5?
The BMW M5 is more efficient, quoting 22 mpg against 20 mpg for the other.
Which has more cargo space, the Audi S8 or the BMW M5?
The Audi S8 holds more, at 17.8 cubic feet versus 14.
Which should I buy, the Audi S8 or the BMW M5?
It depends on what you weight most. The Audi S8 carries more luggage, while the BMW M5 starts about $21,300 lower, returns better fuel economy and makes more power. 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.