Audi RS 6 Avant vs BMW M3
The Audi RS 6 Avant carries more luggage and makes more power, while the BMW M3 starts about $5,700 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 M3 |
|---|---|---|
| Price rangeOriginal sticker prices across all trims. | $67,700 | $62,000–$76,000✓ |
| 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✓ | 13 cu ft |
| Seats | 5 | 5 |
| Fuel types | Petrol | Petrol |
| Drivetrains | AWD | RWD, AWD |
| Safety rating | — | Not rated |
| Reliability | — | — |
| Insurance (yr) | — | — |
| Resale value | — | — |
| Recalls | — | — |
Audi RS 6 Avant vs BMW M3: common questions
Is the Audi RS 6 Avant cheaper than the BMW M3?
No — the BMW M3 has the lower entry price. The Audi RS 6 Avant spans $67,700 and the BMW M3 spans $62,000–$76,000, based on original sticker prices across all trims.
Which is more fuel efficient, the Audi RS 6 Avant or the BMW M3?
The BMW M3 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 M3?
The Audi RS 6 Avant holds more, at 20 cubic feet versus 13.
Which should I buy, the Audi RS 6 Avant or the BMW M3?
It depends on what you weight most. The Audi RS 6 Avant carries more luggage and makes more power, while the BMW M3 starts about $5,700 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.