Audi RS 6 Avant vs BMW M4
The Audi RS 6 Avant carries more luggage and makes more power, while the BMW M4 starts about $3,500 lower and returns better fuel economy. Here is how the two compare on the numbers that decide most purchases.
| Measure | Audi RS 6 Avant | BMW M4 |
|---|---|---|
| Price rangeOriginal sticker prices across all trims. | $67,700 | $64,200–$134,200✓ |
| Years covered | 2026 | 2015–2026 |
| Fuel economyBest figure quoted across the range. | 15 mpg | 26 mpg✓ |
| Power | 600 hp✓ | 543 hp |
| Cargo space | 20 cu ft✓ | 12 cu ft |
| Seats | 5✓ | 4 |
| Fuel types | Petrol | Petrol |
| Drivetrains | AWD | RWD, AWD |
| Safety rating | — | Not rated |
| Reliability | — | — |
| Insurance (yr) | — | — |
| Resale value | — | — |
| Recalls | — | — |
Audi RS 6 Avant vs BMW M4: common questions
Is the Audi RS 6 Avant cheaper than the BMW M4?
No — the BMW M4 has the lower entry price. The Audi RS 6 Avant spans $67,700 and the BMW M4 spans $64,200–$134,200, based on original sticker prices across all trims.
Which is more fuel efficient, the Audi RS 6 Avant or the BMW M4?
The BMW M4 is more efficient, quoting 26 mpg against 15 mpg for the other.
Which has more cargo space, the Audi RS 6 Avant or the BMW M4?
The Audi RS 6 Avant holds more, at 20 cubic feet versus 12.
Which should I buy, the Audi RS 6 Avant or the BMW M4?
It depends on what you weight most. The Audi RS 6 Avant carries more luggage and makes more power, while the BMW M4 starts about $3,500 lower and returns better fuel economy. 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.