Used 2018 Audi A5 for SaleNationwide

How much does the 2018 Audi A5 cost?

Prices have softened 7.76% compared to this time last year, making it a favorable time to shop this model year.

There are 240 listings available, which suggests a modest but workable amount of inventory for shoppers.

Is the 2018 Audi A5 a good car?

Yes — owners rate it 5/5, which is a strong signal that this model year delivers on what shoppers want. The review summary points to elegant design, impressive handling, and a sporty yet luxurious feel, with many owners also appreciating the roomy interior compared with competitors. That lines up well with the overview’s focus on a stylish luxury coupe that also comes in more practical body styles, including the Sportback for buyers who want extra cargo flexibility. With 34.6% of listings marked as good or great deals, you also have a decent chance of finding a compelling example in the market.

Is the 2018 Audi A5 reliable?

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

The review summary also emphasizes the car’s advanced features and overall appeal, while the reliability-related feedback suggests many owners find it dependable enough to enjoy over time. At the same time, some buyers reported condition issues at purchase, so used-car reliability risk here is less about the model’s basic appeal and more about how carefully a specific example was maintained and inspected. For used buyers, that means the long-term ownership risk is manageable if you focus on documented history and a clean pre-purchase inspection.

What should I look for when buying a used 2018 Audi A5?

At 60% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and confirm whether any prior damage was cosmetic or structural. A thorough pre-purchase inspection should get priority, especially on body panels, alignment, and signs of uneven wear that can hint at past repairs. Because owner feedback mentions some inconsistency in condition upon purchase, you should focus on the specific car’s maintenance records and overall presentation rather than assuming every listing is in similar shape.

Is now a good time to buy a used 2018 Audi A5?

This looks like a moderate market where selective buyers can still find value if they shop carefully.

• Deal availability: 34.6% of listings are priced as good or great deals.
• Inventory: There are 240 listings available.
• Price trend: Prices have softened 7.76% compared with last year.
• Clean inventory: 60% of listings are accident-free.

If you find a listing below $18,629, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 Audi A5's resale value?

The current average of $18,629 sits slightly below last year's $20,196.

That price movement suggests the market has already adjusted downward, which can help you buy at a more favorable entry point today. For a future seller, the softer pricing means resale upside may be more limited in the near term unless the car is especially clean, well-optioned, and well documented. Strong condition matters even more in a market where shoppers have some inventory to compare against.

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

Should I buy a 2018 Audi A5 or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 34.6% of listings are priced as good or great deals.
• At 60% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 7.76% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

The bottom line: You should lean toward the 2018 if you want the redesigned A5’s newer styling, strong owner satisfaction, and a market that has softened enough to create some buying opportunities. If you’re especially price-sensitive, a nearby year may be worth comparing, but the 2018 remains the better all-around target when you want the updated design and a solid mix of value and desirability.

How does the 2018 Audi A5 compare to the 2018 BMW 4 Series?

These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.