Used 2018 BMW 4 Series for Sale near Colorado

How much does the 2018 BMW 4 Series cost?

Prices have softened 4.00% compared to this time last year, making it a favorable time to shop this model year.

There are 934 listings available, which gives you a solid amount of inventory to compare.

Is the 2018 BMW 4 Series a good car?

Yes — the 4.9/5 user rating points to strong owner satisfaction. Owners consistently praise its quality, performance, luxury features, smooth ride, sporty handling, and available tech like navigation and the sound system. For you, that makes it a strong fit if you want a premium two-door coupe or convertible that emphasizes style and driving feel over practicality. With 35.1% of listings marked as good or great deals, you also have a decent chance of finding attractive pricing.

Is the 2018 BMW 4 Series reliable?

Owners rate it 4.9/5, a strong signal of long-term satisfaction.

The owner feedback also highlights quality, smooth ride, and a generally trouble-free ownership experience centered on the car’s premium feel and performance. That said, used luxury cars can carry higher long-term ownership risk if maintenance has been deferred, so you should prioritize well-documented service history and a careful pre-purchase inspection.

What should I look for when buying a used 2018 BMW 4 Series?

At 52.9% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should run a vehicle history report on every candidate and confirm whether any prior damage was cosmetic or structural. Put inspection priority on body condition, panel alignment, and signs of repair quality, especially if you’re considering a convertible or a car with higher mileage. Focus on overall condition and maintenance records, since those will matter more than small cosmetic differences when you’re shopping this model year.

Is now a good time to buy a used 2018 BMW 4 Series?

This is a moderate market, so you can be selective without expecting a deep buyer’s market.

• Deal availability: 35.1% of listings are priced as good or great deals.
• Inventory: There are 934 listings available.
• Price trend: Prices have softened 4.00% compared with last year.
• Clean inventory: 52.9% of listings are accident-free.

If you find a listing below $17,222, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 BMW 4 Series's resale value?

The current average of $17,252 sits slightly below last year's $17,970.

That softer pricing suggests the market has already adjusted downward, which can help you buy at a more favorable entry point. For a future seller, that also means resale value will depend heavily on condition, mileage, and how well the car has been maintained. Well-kept examples should hold up better than average because shoppers still respond to the model’s premium image and strong owner satisfaction.

Vehicles with strong owner satisfaction ratings, like this model year's 4.9/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2018 BMW 4 Series 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:

• 35.1% of listings are priced as good or great deals.
• At 52.9% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 4.00% compared with last year.
• Owners rate it 4.9/5 — a strong satisfaction signal.

The bottom line: The 2018 is the better choice if you want a well-liked, premium 4 Series with softer pricing than last year and enough inventory to shop carefully. If your top priority is stretching your budget, you can also look at nearby years, but the 2018 stands out as a balanced pick when you want strong owner satisfaction and a more favorable price trend.

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

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