Used 2018 INFINITI QX80 for SaleNationwide

How much does the 2018 INFINITI QX80 cost?

Prices have softened 13.03% compared to this time last year, making it a favorable time to shop this model year.

There are 728 listings available, which gives you a solid pool of options to compare.

Is the 2018 INFINITI QX80 a good car?

Yes — the 4.6/5 user rating points to strong owner satisfaction. Owners consistently praise its excellent ride quality, attractive design, and abundance of safety features, while also noting the value it offers for the luxury equipment you get. For you, that makes it a compelling choice if you want a full-size luxury SUV with real utility and a premium feel. With 35.4% of listings marked as good or great deals, there is meaningful market opportunity if you shop carefully.

Is the 2018 INFINITI QX80 reliable?

Owners rate it 4.6/5, a strong signal of long-term satisfaction.

The owner feedback also points to a dependable, trouble-free ownership experience for many drivers, with praise centered on the SUV’s long-term appeal and the confidence it inspires over time. That said, you should still expect the usual used-luxury-SUV ownership risks, so a careful pre-purchase inspection matters.

What should I look for when buying a used 2018 INFINITI QX80?

At 63.6% 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 repaired properly. Put inspection priority on body condition, panel alignment, and signs of inconsistent repairs, then make sure the mechanical condition matches the seller’s description. If a listing looks especially clean, verify that the price reflects both its condition and its accident history.

Is now a good time to buy a used 2018 INFINITI QX80?

This is a moderate market for selective buyers, so you can shop with some leverage if you know what to look for.

• Deal availability: 35.4% of listings are priced as good or great deals.
• Inventory: There are 728 listings available.
• Price trend: Prices have softened 13.03% compared with last year.
• Clean inventory: 63.6% of listings are accident-free.

If you find a listing below $18,772, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 INFINITI QX80's resale value?

The current average of $18,772 sits slightly below last year's $21,585.

That decline suggests the market has become more buyer-friendly, which can make future resale a little more challenging if prices continue to soften. If you buy well now, you may have less room for appreciation later, so condition and purchase price matter more than ever. Strong owner satisfaction can help support demand, but the broader price trend still favors buyers more than sellers.

Vehicles with strong owner satisfaction ratings, like this model year's 4.6/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2018 INFINITI QX80 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:

• 35.4% of listings are priced as good or great deals.
• At 63.6% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 13.03% compared with last year.
• Owners rate it 4.6/5 — a strong satisfaction signal.

Consider the 2019 if:

• At $21,062, the 2019 costs more than the current year's $18,772 average.
• It feels more lavish and pricier, with a more upscale presence.

The 2018 is the better path if you want stronger value and more room to negotiate. If you are price-sensitive, it makes sense to focus on the 2018 and target the cleanest, best-priced examples. If you want a newer-feeling ownership experience and can stretch your budget, the 2019 is the alternative to compare.

These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.