Used 2021 Audi RS Q8 for SaleNationwide

How much does the 2021 Audi RS Q8 cost?

Prices have softened 4.33% compared to this time last year, making it a favorable time to shop this model year.

There are 113 listings available, which gives you a modest amount of inventory to compare before you buy.

Is the 2021 Audi RS Q8 a good car?

Yes — the 4.5/5 user rating suggests you’re looking at a model year that owners generally value highly. That kind of feedback points to strong overall satisfaction for shoppers who want a performance-focused used SUV. The market also shows 35.4% of listings as good or great deals, which gives you some room to shop selectively.

Is the 2021 Audi RS Q8 reliable?

Owners rate it 4.5/5, a strong signal of long-term satisfaction.

For used buyers, that still means you should pay close attention to maintenance history and overall condition, since performance vehicles can carry higher ownership risk if they’ve been neglected.

What should I look for when buying a used 2021 Audi RS Q8?

Accident-free inventory is excellent at 91.2% — clean inventory, standard diligence applies.

You should still run a vehicle history report and verify that the car’s records match its mileage and condition. Prioritize a thorough pre-purchase inspection, especially if the vehicle has been driven hard or modified. Focus on wear items, service consistency, and any signs that the car has seen more demanding use than a typical daily driver.

Is now a good time to buy a used 2021 Audi RS Q8?

This is a moderate market, so you can be selective without expecting a deep buyer’s market.

• Deal availability: 35.4% of listings are priced as good or great deals.
• Inventory: There are 113 listings available.
• Price trend: Prices have softened 4.33% compared with last year.
• Clean inventory: 91.2% of listings are accident-free.

If you find a listing below $73,056, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Audi RS Q8's resale value?

The current average of $73,056 sits slightly below last year's $76,363.

That softer pricing can work in your favor if you’re buying now, but it also means future resale may depend heavily on how well the vehicle is maintained and presented. If you keep mileage reasonable and preserve condition, you’ll be in a better position when it’s time to sell. A clean history and strong service records matter even more when the market is already showing some price pressure.

Vehicles with strong owner satisfaction ratings, like this model year's 4.5/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2021 Audi RS Q8 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:

• 35.4% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 91.2% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 4.33% compared with last year.
• Owners rate it 4.5/5 — a strong satisfaction signal.

The bottom line: If you want this model year, the 2021 looks like a sensible place to shop because pricing has eased and there’s enough inventory to compare examples carefully. If you’re especially price-sensitive, keep watching for listings near the low end of the range and be ready to move quickly when a clean, well-priced example appears.

These recommendations are based on CarGurus' proprietary market data from October 6, 2026, CarGurus experts' opinions, and generative AI.