Audi A8 vs BMW M4
The Audi A8 returns better fuel economy, carries more luggage and makes more power, while the BMW M4 starts about $3,500 lower. Here is how the two compare on the numbers that decide most purchases.
| Measure | Audi A8 | BMW M4 |
|---|---|---|
| Price rangeOriginal sticker prices across all trims. | $67,700–$137,900 | $64,200–$139,900✓ |
| Years covered | 2015–2026 | 2015–2026 |
| Fuel economyBest figure quoted across the range. | 28 mpg✓ | 20 mpg |
| Power | 563 hp✓ | 543 hp |
| Cargo space | 17.8 cu ft✓ | 12 cu ft |
| Seats | 5✓ | 4 |
| Fuel types | Petrol, Hybrid, Diesel | Petrol |
| Drivetrains | AWD, RWD | RWD, AWD |
| Safety rating | Not rated (NHTSA) | Not rated (NHTSA) |
| Reliability | — | — |
| Insurance (yr) | — | — |
| Resale value | — | — |
| Recalls | — | 1 recall (2026) |
Audi A8 vs BMW M4: common questions
Is the Audi A8 cheaper than the BMW M4?
No — the BMW M4 has the lower entry price. The Audi A8 spans $67,700–$137,900 and the BMW M4 spans $64,200–$139,900, based on original sticker prices across all trims.
Which is more fuel efficient, the Audi A8 or the BMW M4?
The Audi A8 is more efficient, quoting 28 mpg against 20 mpg for the other.
Which has more cargo space, the Audi A8 or the BMW M4?
The Audi A8 holds more, at 17.8 cubic feet versus 12.
Which should I buy, the Audi A8 or the BMW M4?
It depends on what you weight most. The Audi A8 returns better fuel economy, carries more luggage and makes more power, while the BMW M4 starts about $3,500 lower. 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.