Audi RS 6 Avant vs BMW X3 M
The Audi RS 6 Avant starts about $2,200 lower and makes more power, while the BMW X3 M returns better fuel economy and carries more luggage. Here is how the two compare on the numbers that decide most purchases.
| Measure | Audi RS 6 Avant | BMW X3 M |
|---|---|---|
| Price rangeOriginal sticker prices across all trims. | $67,700✓ | $69,900–$76,900 |
| Years covered | 2026 | 2020–2024 |
| Fuel economyBest figure quoted across the range. | 15 mpg | 19 mpg✓ |
| Power | 600 hp✓ | 503 hp |
| Cargo space | 20 cu ft | 28.7 cu ft✓ |
| Seats | 5 | 5 |
| Fuel types | Petrol | Petrol |
| Drivetrains | AWD | AWD |
| Safety rating | — | Not rated |
| Reliability | — | — |
| Insurance (yr) | — | — |
| Resale value | — | — |
| Recalls | — | — |
Audi RS 6 Avant vs BMW X3 M: common questions
Is the Audi RS 6 Avant cheaper than the BMW X3 M?
Yes — the Audi RS 6 Avant has the lower entry price. The Audi RS 6 Avant spans $67,700 and the BMW X3 M spans $69,900–$76,900, based on original sticker prices across all trims.
Which is more fuel efficient, the Audi RS 6 Avant or the BMW X3 M?
The BMW X3 M is more efficient, quoting 19 mpg against 15 mpg for the other.
Which has more cargo space, the Audi RS 6 Avant or the BMW X3 M?
The BMW X3 M holds more, at 28.7 cubic feet versus 20.
Which should I buy, the Audi RS 6 Avant or the BMW X3 M?
It depends on what you weight most. The Audi RS 6 Avant starts about $2,200 lower and makes more power, while the BMW X3 M returns better fuel economy and carries more luggage. 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.