DecodedCarsAudi A6 vs Volvo S90
2026 Audi A6 vs 2026 Volvo S90 — two rivals compared on efficiency, size, safety and reliability.
The short version
The Volvo S90 is more fuel-efficient: 28 vs 24 MPG combined in its best version.
That works out to about $450 a year less in fuel for the Volvo S90 (EPA estimate, 15,000 miles).
Across all model years since 2005, the Volvo S90 has had fewer recall campaigns (15 vs 33).
The two cars
The 2026 Audi A6 is a midsize station wagon offered with a 3.0L 6-cyl turbo engine, including a hybrid version and all-wheel drive. It measures about 197 inches long and 74 inches wide on a 115-inch wheelbase, with a curb weight of roughly 4,319 lb (4dr Sedan).
The 2026 Volvo S90 is a midsize car offered with a 2.0L 4-cyl turbo engine, including a hybrid version and front-wheel drive. EPA rates its most efficient version at 28 MPG combined (24 city / 34 highway), 10% worse than the 2026 midsize car average of 31.2 MPG, for an estimated $2,950 a year in fuel.
Buying used? The 2024 A6 and the 2021 S90 have the fewest problems in our data; avoid the 2019 A6 and the 2019 S90.
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 A6 if…
- You need AWD or 4WD
Choose the Volvo S90 if…
- You want lower fuel bills (28 vs 24 MPG)
- You put reliability history first (15 vs 33 recalls since 2005)
Pros & cons of each
2026 Audi A6
- Hybrid version availableOffered as a hybrid as well as gas.
- Lots of standard safety tech4 of 5 key driver aids standard on the versions we checked.
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
2026 Volvo S90
- 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 A6 specs →Full 2026 Volvo S90 specs →Compare fuel costs for your driving →Compare size & garage fit →