Used 2018 Buick LaCrosse for Sale nearSaint Louis, MO

How much does the 2018 Buick LaCrosse cost?

Prices have softened 5.47% compared to this time last year, making it a favorable time to shop this model year.

There are 273 listings available, which gives you a reasonable amount of inventory to compare before you buy.

Is the 2018 Buick LaCrosse a good car?

Yes — the 5/5 user rating points to strong owner satisfaction, and the 2018 LaCrosse’s overview backs that up with a comfort-first, upscale approach. You get a large, quiet sedan with a roomy cabin, a bigger back seat, a 15-cubic-foot trunk, and available features that help it feel modern for the class. If you want a relaxed, well-equipped sedan rather than something flashy, this model year fits that use case well. 32.6% of listings are priced as good or great deals, so there are still attractive options in the market.

Is the 2018 Buick LaCrosse reliable?

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

The overview suggests a car built around comfort, quietness, and a premium-feeling cabin, with modern equipment such as available all-wheel drive, a touchscreen infotainment system, and Apple CarPlay. It also notes some cabin materials criticism, so you should pay attention to interior condition and how well the car has aged. For used buyers, the main long-term ownership risk is less about outright character and more about finding one that has been maintained carefully and not worn hard.

What should I look for when buying a used 2018 Buick LaCrosse?

At 64.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

Start with a vehicle history report so you can separate clean examples from cars with prior damage. Then prioritize a thorough pre-purchase inspection, with extra attention to bodywork quality, panel alignment, and signs of interior wear. Because the cabin was criticized for some flimsy plastic parts, focus on condition details inside the car as well as the mechanical basics.

Is now a good time to buy a used 2018 Buick LaCrosse?

This is a moderate, selective buyer’s market, so you have room to shop carefully without rushing.

• Deal availability: 32.6% of listings are priced as good or great deals.
• Inventory: There are 273 listings available.
• Price trend: Prices have softened 5.47% compared with last year.
• Clean inventory: 64.5% of listings are accident-free.

If you find a listing below $15,807, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 Buick LaCrosse's resale value?

The current average of $16,037 sits slightly below last year's $16,965.

That decline suggests the market has softened, which can help you buy more confidently now but may also limit near-term upside if you plan to resell soon. Because the LaCrosse was never a bargain when new, its resale story depends heavily on condition, mileage, and how well the car presents compared with similar listings. If you buy a clean, well-kept example, you improve your odds of holding value better than the average car in this segment.

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 Buick LaCrosse 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:

• 32.6% of listings are priced as good or great deals.
• At 64.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 5.47% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

Consider the 2017 if:

• At $15,823, the 2017 costs less than the current year's $16,037 average.
• The redesign gives it a more premium feel and broadens Buick’s appeal.

The bottom line: If you want the stronger current-market balance of price, inventory, and owner satisfaction, the 2018 is the better primary choice. If you’re especially price-sensitive, the 2017 is worth a look because it undercuts the 2018 on average price while still delivering a premium-feeling full-size sedan experience.

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