How much does the 2018 INFINITI QX80 cost?

Prices have softened 14.47% compared to this time last year, making it a favorable time to shop this model year.

There are 663 listings available, which gives you a meaningful amount of inventory to compare.

If you find a listing below $19,038.62, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2018 INFINITI QX80 a good car?

Yes — the 2018 INFINITI QX80 earns a 4.6/5 user rating, which points to strong owner satisfaction.

Owners consistently praise its comfort, attractive design, and abundance of safety features. The review summary also highlights the value you get from its luxury equipment, which matters if you want a full-size SUV that feels well appointed without moving into newer-price territory.

If you want a large luxury SUV focused on space, comfort, and features, this model year fits that use case well. The market also shows 28.8% of listings as good or great deals, which gives you some room to shop selectively.

Is the 2018 INFINITI QX80 reliable?

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

The review summary points to a vehicle owners feel good about living with, especially because they value its comfort, design, and feature content over time. That kind of feedback suggests you can count on it to deliver the ownership experience buyers expect from a luxury SUV.

For used buyers, the main long-term risk is less about satisfaction and more about making sure the specific vehicle has been cared for properly.

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

At 63.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report so you can separate clean examples from those with past damage. After that, prioritize a thorough inspection of body panels, paint consistency, and signs of uneven wear, since condition matters a lot when you’re shopping a luxury SUV at this price point.

Because this model is known for comfort and equipment, make sure the features you care about actually work as intended before you buy.

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

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find value.

• Deal availability: 28.8% of listings are priced as good or great deals.
• Inventory: There are 663 listings available.
• Price trend: Prices have softened 14.47% compared with last year.
• Clean inventory: 63.2% of listings are accident-free.

If you find a listing below $19,038.62, 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 $19,030 sits slightly below last year's $22,250.

That decline suggests sellers may need to price competitively if they want to move the vehicle quickly. For you as a future seller, the key takeaway is that the market has softened, so condition, mileage, and documentation will matter more when you try to protect value.

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:

• 28.8% of listings are priced as good or great deals.
• At 63.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 14.47% compared with last year.
• Owners rate it 4.6/5 — a strong satisfaction signal.

Consider the 2019 if:

• At $21,781, the 2019 costs more than the current year's $19,030 average.
• It feels more upscale and pricier while keeping the same basic character.

The bottom line: If you want the better value play, the 2018 is the stronger starting point because it combines a lower average price with solid owner satisfaction. If you’re willing to pay more for a newer-feeling, more lavish version, the 2019 is the better secondary path for buyers who prioritize that extra upscale presentation over savings.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.