DecodedCarsAudi Q3 vs BMW X3
2026 Audi Q3 vs 2026 BMW X3 — two small SUVs compared on efficiency, size, safety and reliability.
The short version
The BMW X3 is more fuel-efficient: 29 vs 25 MPG combined in its best version.
That works out to about $150 a year less in fuel for the Audi Q3 (EPA estimate, 15,000 miles).
The BMW X3 is the bigger car, about 9 inches longer.
Across all model years since 2005, the Audi Q3 has had fewer recall campaigns (19 vs 62).
The two cars
The 2026 Audi Q3 is a small SUV offered with a 2.0L 4-cyl turbo engine and all-wheel drive. It measures about 178 inches long and 73 inches wide on a 106-inch wheelbase, with a curb weight of roughly 3,942 lb.
The 2026 BMW X3 is a small SUV offered with 2 engines (2.0L 4-cyl turbo and 3.0L 6-cyl turbo), including a hybrid version and all-wheel drive. It measures about 187 inches long and 76 inches wide on a 113-inch wheelbase, with a curb weight of roughly 4,176 lb (30 Xdrive 4dr SUV).
Buying used? The 2023 Q3 and the 2023 X3 have the fewest problems in our data; avoid the 2022 Q3 and the 2020 X3.
Basics
Efficiency
Performance & space
Safety & reliability
Interest
Green = clearly better. Prices are not included. How we calculate this →
Which one should you choose?
Choose the Audi Q3 if…
- You want something easier to park (9 in shorter)
- You want more standard driver-assist tech
- You put reliability history first (19 vs 62 recalls since 2005)
Choose the BMW X3 if…
- You want lower fuel bills (29 vs 25 MPG)
- You want more power (up to 393 vs 255 hp)
- You want more room (9 in longer)
- You want a hybrid or electric option
Pros & cons of each
2026 Audi Q3
- Lots of standard safety tech4 of 5 key driver aids standard on the versions we checked.
2026 BMW X3
- Hybrid version availableOffered as a hybrid as well as gas.
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Full 2026 Audi Q3 specs →Full 2026 BMW X3 specs →Compare fuel costs for your driving →Compare size & garage fit →