Used 2021 Audi A6 for Sale nearMadison, WI

How much does the 2021 Audi A6 cost?

Prices have softened 7.79% compared to this time last year, making it a favorable time to shop this model year.

There are 242 listings available, which gives you a modest amount of inventory to compare before you buy.

Is the 2021 Audi A6 a good car?

Generally — the 2021 Audi A6 earns a 4.3/5 user rating, which points to strong owner satisfaction. Owners consistently praise the high-tech features and smooth driving experience, and many also appreciate how it performs in different weather conditions. The A6’s appeal is strongest if you want a premium midsize sedan with standard all-wheel drive, a spacious feel, and a long list of technology features. With 35.1% of listings marked as good or great deals, you have a decent chance of finding a competitive offer.

Is the 2021 Audi A6 reliable?

Owners rate it 4.3/5, a solid signal of long-term satisfaction.

User feedback highlights reliability and safety, and many owners describe the car as dependable in everyday use. That said, some buyers mention wear-and-tear concerns and past accident records, so a careful inspection matters. For used shoppers, the main long-term ownership risk is ending up with a car whose condition history doesn’t match its premium image.

What should I look for when buying a used 2021 Audi A6?

Accident-free inventory is solid at 83.5% — always verify the vehicle history report.

You should prioritize a history report first, then inspect the car closely for signs of prior damage, uneven wear, or repair quality issues. Because some owners mention wear and tear, a pre-purchase inspection is especially important if the listing looks unusually cheap. Focus on overall condition, not just mileage or features, so you can avoid a car with hidden costs.

Is now a good time to buy a used 2021 Audi A6?

This is a moderate market, so you can be selective without expecting a deep bargain on every listing.

• Deal availability: 35.1% of listings are priced as good or great deals.
• Inventory: There are 242 listings available.
• Price trend: Prices have softened 7.79% compared with last year.
• Clean inventory: 83.5% of listings are accident-free.

If you find a listing below $26,211, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Audi A6's resale value?

The current average of $26,262 sits slightly below last year's $28,480.

That price movement suggests the market has already adjusted downward, which can help you buy more confidently now but may also limit near-term upside if you plan to resell soon. For a future seller, the softer pricing means condition and documentation matter even more, because well-kept examples are more likely to stand out. Vehicles with solid owner satisfaction ratings, like this model year's 4.3/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2021 Audi A6 or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 35.1% of listings are priced as good or great deals.
• Accident-free inventory is solid at 83.5% — always verify the vehicle history report.
• Price trend: Prices have softened 7.79% compared with last year.
• Owners rate it 4.3/5 — a solid satisfaction signal.

The bottom line: The 2021 is a strong choice if you want the A6’s standard all-wheel drive, tech-heavy cabin, and a used price that has come down meaningfully. If you’re more price-sensitive, you may want to compare nearby years for the best combination of condition, history, and asking price before you commit.

How does the 2021 Audi A6 compare to the 2021 BMW 5 Series?

These recommendations are based on CarGurus' proprietary market data from October 21, 2026, CarGurus experts' opinions, and generative AI.