Used 2018 INFINITI Q50 for Sale near Idaho

Compare 2018 INFINITI Q50 Trims

The 2018 INFINITI Q50 offers a range of trims from budget-friendly options to performance-oriented models, all featuring a powerful V6 engine.

• Starting at $15,118
• Best MPG/MPGe: 20 city / 29 hwy
• Most Popular: 3.0t Luxe RWD

Trim Overview

Prices updated weekly from CarGurus listings.

Quick Compare Table

Listing prices sourced from CarGurus — updated weekly. OEM specs from manufacturer data.

Missing data displayed as "—".

Trim Deep Dives

3.0t Luxe RWD — "Who It's For"

The 3.0t Luxe RWD is the pick for shoppers who want a well-equipped luxury sedan without paying for higher trims. It's also the most popular choice in the lineup.

• Avg. market price: $15,118 (updated weekly)
• MPG/MPGe: 20 city / 29 hwy
• Inventory: 232 listings
• View 3.0t Luxe RWD listings

3.0t Sport RWD — "Who It's For"

The 3.0t Sport RWD is the pick for shoppers who want a sporty driving experience without stepping up to the performance trims.

• Avg. market price: $16,506 (updated weekly)
• MPG/MPGe: 20 city / 29 hwy
• Inventory: 59 listings — lower availability; may limit negotiating room
• View 3.0t Sport RWD listings

3.0t Luxe AWD — "Who It's For"

The 3.0t Luxe AWD is the pick for shoppers who want all-wheel drive capability without a significant price increase.

• Avg. market price: $16,574 (updated weekly)
• MPG/MPGe: 19 city / 27 hwy
• Inventory: 232 listings
• View 3.0t Luxe AWD listings

3.0t Sport AWD — "Who It's For"

The 3.0t Sport AWD is the pick for shoppers who want sporty performance combined with all-weather capability.

• Avg. market price: $16,761 (updated weekly)
• MPG/MPGe: 19 city / 27 hwy
• Inventory: 78 listings — lower availability; may limit negotiating room
• View 3.0t Sport AWD listings

Red Sport 400 RWD — "Who It's For"

The Red Sport 400 RWD is the pick for shoppers who want a high-performance luxury sedan without the added weight of AWD.

• Avg. market price: $19,386 (updated weekly)
• MPG/MPGe: 20 city / 26 hwy
• Inventory: 87 listings — lower availability; may limit negotiating room
• View Red Sport 400 RWD listings

Red Sport 400 AWD — "Who It's For"

The Red Sport 400 AWD is the pick for shoppers who want top-tier performance with the added benefit of all-wheel drive.

• Avg. market price: $20,504 (updated weekly)
• MPG/MPGe: 19 city / 26 hwy
• Inventory: 115 listings — lower availability; may limit negotiating room
• View Red Sport 400 AWD listings

Trim Recommendations

Most Popular — 3.0t Luxe RWD

With 232 active listings, the 3.0t Luxe RWD is the clear volume leader in the lineup.

Browse 3.0t Luxe RWD listings

Best Budget Option — 3.0t Luxe RWD

At $15,118 avg market price — below the lineup median of $16,667 — it's the most accessible entry point.

Browse 3.0t Luxe RWD listings

Best for Fuel Economy — 3.0t Luxe RWD

The 3.0t Luxe RWD offers the best fuel economy in the lineup at 20/29 MPG.

Browse 3.0t Luxe RWD listings

These recommendations are based on CarGurus' proprietary market data from September 12, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2018 INFINITI Q50 cost?

Prices have softened 5.07% compared to this time last year, making it a favorable time to shop this model year.

There are 654 listings available, which gives you a meaningful amount of inventory to compare before you buy.

Is the 2018 INFINITI Q50 a good car?

Generally — the 2018 INFINITI Q50 earns a 4.47/5 user rating, which points to strong owner satisfaction. Drivers most often praise its performance, features, and handling, and many specifically like the power and acceleration it delivers. The overview also shows why it appeals to you if you want a midsize premium sedan with generous standard equipment and a competitive price. With 26.0% of listings marked as good or great deals, you have some room to shop selectively.

Is the 2018 INFINITI Q50 reliable?

Owners rate it 4.47/5, a solid signal of long-term satisfaction.

The user feedback also leans toward dependable ownership, with drivers describing the car in positive terms around performance and overall satisfaction. That said, some owners note that the ride could be more comfortable and that the car lacks some modern technology features, so you should weigh those tradeoffs against the strong ownership sentiment. For used buyers, the main long-term risk is less about broad dissatisfaction and more about finding a well-kept example that has been maintained carefully.

What should I look for when buying a used 2018 INFINITI Q50?

At 46% 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 cars with prior damage. After that, prioritize a thorough pre-purchase inspection, especially if the listing price looks unusually attractive. Focus on overall condition, repair quality, and signs of inconsistent wear so you can avoid paying strong money for a car with hidden issues.

Is now a good time to buy a used 2018 INFINITI Q50?

This looks like a moderate, selective buyer's market, so you can shop patiently but still move quickly on the right car.

• Deal availability: 26.0% of listings are priced as good or great deals.
• Inventory: There are 654 listings available.
• Price trend: Prices have softened 5.07% compared with last year.
• Clean inventory: 46.0% of listings are accident-free.

If you find a listing below $16,075, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 INFINITI Q50's resale value?

The current average of $16,430 sits slightly below last year's $17,307.

That price movement suggests the model has softened, which can make it easier for you to buy now but may also limit upside if you plan to resell soon. For a future seller, the current market shows that buyers are still interested, but they are not paying the same premiums they were a year ago. If you keep the car in strong condition and buy at the right price, you can help protect your eventual resale position.

Vehicles with solid owner satisfaction ratings, like this model year's 4.47/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2018 INFINITI Q50 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:

• 26.0% of listings are priced as good or great deals.
• At 46% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 5.07% compared with last year.
• Owners rate it 4.47/5 — a solid satisfaction signal.

The bottom line: If you want a well-equipped luxury sedan with strong owner approval and a softer current price, the 2018 is the primary year to target. If you are especially price-sensitive, you can also compare nearby years and focus on the cleanest, best-documented example rather than chasing the newest badge year.

These recommendations are based on CarGurus' proprietary market data from September 15, 2026, CarGurus experts' opinions, and generative AI.