Audi A4 vs BMW X3
Head-to-head specifications
| Metric | Audi A4 | BMW X3 | Difference |
|---|---|---|---|
| Max power (hp) | 163 | 197 | -17.3% |
| Max torque (Nm) | 380 | 400 | -5.0% |
| Fuel economy (km/L) | 20.8 | 17.2 | +20.9% |
| NCAP safety | 5★ (Euro NCAP) | 5★ (Euro NCAP) | — |
| Fuel type | Diesel | Diesel | — |
| Transmission | DSG | Automatic | — |
| Price (USD est.) | $45,468 | $70,092 | -35.1% |
- BMW X3 makes about 17% more power (197 vs 163 hp).
- Audi A4 is the more economical, at 20.8 km/L against 17.2.
Verdict: A4 or X3?
Audi A4 advantages
- Fuel economy (+17%)
- Affordability (+35%)
BMW X3 advantages
- Engine power (+17%)
- Pulling torque (+5%)
Which should you choose?
- Choose the Audi A4 if you drive a lot and fuel costs matter.
- Choose the BMW X3 if you want stronger performance and overtaking confidence.
- Choose the Audi A4 if you want the lower upfront cost.
Value for money
Audi A4 delivers more horsepower per dollar, making it the better value of the two at their listed prices.
Audi A4 vs BMW X3: which should you choose?
Audi A4 (2023 35 TDI) — diesel sedan with 163 hp and 380 Nm, rated at 20.8 km/L, 5-star Euro NCAP safety; priced near $45,468 in the Germany market.
BMW X3 (2024 xDrive20d (G45)) — diesel suv with 197 hp and 400 Nm, rated at 17.2 km/L, 5-star Euro NCAP safety; priced near $70,092 in the Germany market.
Audi A4 vs BMW X3: BMW X3 is more powerful. BMW X3 makes about 17% more power (197 vs 163 hp). Audi A4 is the more economical, at 20.8 km/L against 17.2.
Performance
The BMW X3 is the more powerful, at 197 hp against 163 hp, with 400 Nm of torque on tap. Its diesel drivetrain pairs with a automatic transmission.
Running costs
The Audi A4 is more economical at 20.8 km/L against 17.2 km/L on their certified cycles, which compounds meaningfully over years of ownership. Test cycles differ between markets, so treat cross-region figures as directional.
Safety
Audi A4 is rated 5 stars by Euro NCAP and BMW X3 5 stars by Euro NCAP. Different NCAP programmes use different protocols, so same-programme comparisons are the most reliable.
Price and value
The Audi A4 lists lower at about $45,468 (USD-converted from the Germany market). Factor in insurance, fuel or charging, taxes and resale — not just the sticker price.
The verdict
Both are credible choices in the car comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the Audi A4 better than the BMW X3?
These two are closely matched — the right pick comes down to which specific strengths you value and the price you actually pay. BMW X3 makes about 17% more power (197 vs 163 hp).
What is the main difference between the Audi A4 and the BMW X3?
BMW X3 makes about 17% more power (197 vs 163 hp). Audi A4 is the more economical, at 20.8 km/L against 17.2.
Which is better value?
Audi A4 delivers more horsepower per dollar, making it the better value of the two at their listed prices.
Which should I choose?
Choose the Audi A4 if you drive a lot and fuel costs matter. Choose the BMW X3 if you want stronger performance and overtaking confidence.
Methodology
Cars are compared on manufacturer-rated maximum power and torque, certified fuel economy (km/L, converted from each market's test cycle: EPA, WLTP, CLTC, JC08/WLTC, ARAI) or EV energy use (kWh/100km), official NCAP crash-test ratings from the model's home-market programme, and list prices converted to USD at recent exchange rates. Each model shows its newest listed year and its highest-priority market trim. Test cycles differ between regions, so cross-market economy figures are directional rather than exact; prices exclude local taxes and incentives.