Audi
A6
Owner report available
Infiniti
Q70
Owner report available
Audi A6 vs Infiniti Q70
The short answer
Based on available data, the Infiniti Q70 comes out ahead of the Audi A6 on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
A6
Overall
Sentiment is sharply divided by generation and powertrain. For the C7 (approx. 2012-2018) and C8 (approx. 2019-2023) generations, owner feedback is generally positive, praising the cars for their refined driving experience, comfortable and quiet ride, spacious interiors, and strong performance from the 3.0-liter engines (both TFSI and TDI). The A6 Allroad variant, in particular, receives high marks for its air suspension comfort, practicality, and impressive highway fuel economy.
Best version to buy
For the C7/C8 generations, the A6 Allroad 55 TDI (in Europe) and the A6 3.0T (55 TFSI) are highly recommended for their robust power delivery, torque, and reported reliability. The Prestige trim is favored for its comprehensive technology and comfort features, including the head-up display, massaging seats, and superior sound insulation.
Known issues
- High maintenance and repair costs: very frequent. General concerns about long-term reliability and expensive out-of-warranty repairs: very frequent. Wireless CarPlay connectivity issues (dropping, failure to connect): recurrent.
Q70
Overall
Mixed to positive sentiment, heavily dependent on engine choice and model year. The naturally aspirated 3.7L V6 (VQ37VHR) and 5.6L V8 (VK56VD) engines are widely praised for their strong power, reliability, and longevity, with the 3.7L noted as being "rock solid" and the V8 described as "fun as shit to drive." The vehicle is appreciated for its handsome looks, comfortable and capable handling on both back roads and interstates, and spacious interior, particularly in the long-wheelbase (L) models. Significant and consistent criticism is directed at the outdated, overly complicated, and slow infotainment system and gauge cluster, which is described as feeling a generation behind competitors.
Best version to buy
2014 and newer Q70 with the 5.6L V8. This recommendation is based on mechanical quality-of-life updates that addressed known issues from the preceding M56 generation, such as the timing chain and rear-wheel steering.
Known issues
- Outdated and problematic infotainment system: described as overly complicated, slow, and a generation behind; Bluetooth connectivity issues with multiple phones. Frequency: very frequent.
- Unresponsive 7-speed automatic transmission: significant lag and delay in kick-down, especially in default and Eco modes; harsh, noticeable shifts; described as having a "dead spot" and being sluggish. Frequency: very frequent.
- Poor fuel economy: consistently reported as a downside for both the 3.7L V6 and 5.6L V8 engines. Frequency: very frequent.
The verdict
The Infiniti Q70 is the better choice for most buyers.
It has more power on its best-equipped version than the Audi A6, based on the data above. If efficiency matters more to you than outright power, the Audi A6 is worth a closer look instead.
Explore further
Common problems by model year
Other comparisons
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Frequently asked questions
Which is more reliable, the Audi A6 or the Infiniti Q70?
Owner reports show similar reliability sentiment for the Audi A6 and the Infiniti Q70. Check the known issues listed above for specific differences between the two.
Which is better for families, the Audi A6 or the Infiniti Q70?
Data on family-specific factors like cargo space is limited for one or both models, but based on available reports, both are positioned as practical daily drivers. Check the specs table above for seating and body type.
Which has better fuel economy, the Audi A6 or the Infiniti Q70?
The EPA rates the 2027 Audi A6 at 105–127 MPGe combined and the 2019 Infiniti Q70 at 18–21 mpg, depending on the version.
Which is cheaper to maintain, the Audi A6 or the Infiniti Q70?
Exact maintenance costs aren't in our data, but reliability signals above are the closest proxy: fewer reported issues generally means lower repair costs over time.