DecodedCarsAlfa Romeo Giulia vs Audi A6
2026 Alfa Romeo Giulia vs 2026 Audi A6 — two rivals compared on efficiency, size, safety and reliability.
The short version
The Alfa Romeo Giulia is more fuel-efficient: 27 vs 24 MPG combined in its best version.
That works out to about $350 a year less in fuel for the Alfa Romeo Giulia (EPA estimate, 15,000 miles).
Across all model years since 2005, the Alfa Romeo Giulia has had fewer recall campaigns (17 vs 33).
The two cars
The 2026 Alfa Romeo Giulia is a midsize car offered with a 2.0L 4-cyl turbo engine and rear-wheel drive and all-wheel drive. EPA rates its most efficient version at 27 MPG combined (24 city / 33 highway), 13% worse than the 2026 midsize car average of 31.2 MPG, for an estimated $3,050 a year in fuel.
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).
Buying used? The 2023 Giulia and the 2024 A6 have the fewest problems in our data; avoid the 2018 Giulia and the 2019 A6.
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 Alfa Romeo Giulia if…
- You want lower fuel bills (27 vs 24 MPG)
- You put reliability history first (17 vs 33 recalls since 2005)
Choose the Audi A6 if…
- You want a hybrid or electric option
Pros & cons of each
2026 Alfa Romeo Giulia
- AWD / 4WD available
- Below-average fuel economyBest version gets 27 MPG combined, 13% below the 2026 midsize car average of 31.2 MPG.
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
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.
Full 2026 Alfa Romeo Giulia specs →Full 2026 Audi A6 specs →Compare fuel costs for your driving →Compare size & garage fit →