DecodedCarsAudi A6 vs Genesis G80
2026 Audi A6 vs 2026 Genesis G80 — two rivals compared on efficiency, size, safety and reliability.
The short version
The Audi A6 is more fuel-efficient: 24 vs 23 MPG combined in its best version.
That works out to about $2,600 a year less in fuel for the Genesis G80 (EPA estimate, 15,000 miles).
Across all model years since 2005, the Genesis G80 has had fewer recall campaigns (16 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 Genesis G80 is a midsize car offered with 2 engines (2.5L 4-cyl turbo and 3.5L 6-cyl turbo) and all-wheel drive. It measures about 197 inches long and 76 inches wide on a 119-inch wheelbase, with a curb weight of roughly 4,295 lb (4dr Sedan AWD 2.5t).
Buying used? The 2024 A6 and the 2024 G80 have the fewest problems in our data; avoid the 2019 A6 and the 2018 G80.
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…
It doesn't clearly beat the Genesis G80 on any measure we track.
Choose the Genesis G80 if…
- You want an EV with more range (300 miles)
- You put reliability history first (16 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 Genesis G80
- Long EV rangeUp to 300 miles on a charge (EPA).
- Electric version availableOffered as a electric as well as gas.
- Lots of standard safety tech5 of 5 key driver aids standard on the versions we checked.
- Below-average fuel economyBest version gets 23 MPG combined, 26% below the 2026 midsize car average of 31.2 MPG.
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Full 2026 Audi A6 specs →Full 2026 Genesis G80 specs →Compare fuel costs for your driving →Compare size & garage fit →