Used Audi A6 for Sale nearGreat Falls, MT

How much does the Audi A6 cost in today's market?

Used Audi A6 prices span a wide range depending on model year. Here's what the market looks like right now:

The Audi A6's current nationwide average price is $26,899, and its lowest point over the past year was $21,969. Recently, prices have come down for the 2023, 2024, and 2025 models, making now a good time to shop recent model years.

Is the Audi A6 a good car?

Yes — the Audi A6 is a strong pick if you want a luxury sedan that blends comfort, technology, and a polished driving feel.

The all-generations owner rating is 4.59/5 across every model year in the data.

Owners consistently praise the A6 for its comfortable interiors, smooth handling, and advanced technology. Across the model years, the car also earns recurring praise for its luxury feel, strong performance, and long-distance comfort.

Expert reviews rate the 2019 and 2026 models among the highest across all years.

The main trade-offs show up in recent expert coverage: interior materials can feel underwhelming, the infotainment system can be frustrating to use, and the driving experience can feel less refined than you might expect from the badge.

34.4% of listings are priced as good or great deals.

Are Audi A6 models reliable?

Owners and experts consistently point to the A6’s comfortable ride, strong performance, and upscale cabin as core strengths. The model also earns repeated praise for its technology and all-weather confidence.

• Owners rate the Audi A6 between 3.86 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is most tied to maintenance costs and the condition of individual examples, so a careful inspection and service-history review matter a lot.

What should I look for when buying a used Audi A6?

Across all model years, accident-free inventory is solid at 77.7% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2020 models.

Key things to evaluate:

• Safety package: adaptive cruise control, forward-collision warning, automatic emergency braking, rear cross-traffic alert, blind-spot monitors, traffic-sign recognition, parking sensors, and lane-departure warning; park-assist, adaptive cruise assist, and a 360-degree camera system on the Premium Plus and Prestige trim levels.
• Infotainment: standard wireless Apple CarPlay and Android Auto with the latest MMI infotainment system, plus a standard 11.9-inch digital instrument cluster and 14.5-inch touchscreen.
• Fuel efficiency: The A6’s EPA-rated 23 mpg combined (20 mpg city, 29 mpg highway) isn’t bad for a generously-proportioned sedan with a V6 and AWD.

Which Audi A6 trim should I buy?

The 2026 Audi A6 offers these trims:

• Premium: The base A6 Premium gives you the redesigned sedan with the turbocharged 3.0-liter V6, standard quattro AWD, and 19-inch wheels with all-season run-flat tires.
• Premium Plus: Premium Plus adds park-assist, adaptive cruise assist with automated lane centering, and a 360-degree camera system, making it the best-value trim for many shoppers.
• Prestige: Prestige brings adaptive air suspension as standard, and it can be paired with the Sport Plus Package for rear-axle steering, a sport rear differential, and 21-inch wheels with summer tires.

What Audi A6 do most buyers choose?

The Audi A6 years with the most listings are 2024, 2023, and 2018.

Higher-volume years usually give you more choice in trims, colors, and pricing, which is why they tend to be the most popular used picks. They also make it easier to compare similar listings and find a deal that fits your budget.

What is the Audi A6's resale value?

Most model years are down year over year, and several recent ones show especially sharp drops. That pattern can work in your favor if you’re shopping used, since it opens up more value on newer examples. The smallest changes are concentrated in the older model years and the 2023 model year.

The 2023, 2015, and 2016 model years have held their value best, with the smallest year-over-year price changes.

Is the Audi A6 safe?

• 2026: 6/10
• 2019: 10/10

The 2026 A6 comes standard with adaptive cruise control, forward-collision warning, automatic emergency braking, rear cross-traffic alert, blind-spot monitors, traffic-sign recognition, parking sensors, and lane-departure warning.

For the safest used buy, the 2019 model posts the highest confirmed score of 10/10.

Should I buy a used Audi A6 now or wait for the next model?

Buy now if:

• Price trend: The 2025 model is at −13.66% versus a year ago, and the 2024 model is at −19.9%.
• Deal availability: The 2025 model has 35.1% good and great deals, and the 2024 model has 37.7%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $30,459. The Audi A6 offers a refined cabin, confident road manners, and a sophisticated but subtle image.

Consider waiting if:

• Powertrain/efficiency: The A6’s EPA-rated 23 mpg combined (20 mpg city, 29 mpg highway) isn’t bad for a generously-proportioned sedan with a V6 and AWD.
• Tech: A standard 11.9-inch digital instrument cluster and 14.5-inch touchscreen flank the driver, and standard wireless Apple CarPlay and Android Auto are included.
• Safety: The A6 comes standard with adaptive cruise control, forward-collision warning, automatic emergency braking, rear cross-traffic alert, blind-spot monitors, traffic-sign recognition, parking sensors, and lane-departure warning.
• Starting price: Pricing starts at $65,395 for the base A6 Premium.

If you're buying used today, the 2024 model year offers the best mix of value and availability. If you want the latest tech and features, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.