Used 2018 BMW 4 Series for Sale nearTrenton, NJ

How much does the 2018 BMW 4 Series cost?

Prices have softened 4.09% compared to this time last year, making it a favorable time to shop this model year.

There are 921 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 useful tech such as the sound system and navigation. For you, that means this model fits especially well if you want a premium two-door coupe or convertible with a distinctive shape and a sporty feel rather than a conventional sedan. With 35.4% of listings marked as good or great deals, there is still room to shop selectively.

Is the 2018 BMW 4 Series reliable?

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

The owner feedback also points to a generally dependable reputation, with praise for quality and a trouble-free ownership experience centered on the car’s performance and features. That said, used luxury cars can carry higher long-term ownership risk if maintenance has been deferred, so you should prioritize service history and overall condition.

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

At 53.5% 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 reported damage was repaired properly. Put inspection priority on bodywork, panel alignment, and signs of inconsistent wear, then focus on the condition of the convertible top if you are shopping that body style. A careful pre-purchase inspection matters most on cars where prior incidents may affect long-term value and repair costs.

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

This looks like a moderate, selective buyer’s market, so you can shop patiently and still find worthwhile options.

• Deal availability: 35.4% of listings are priced as good or great deals.
• Inventory: There are 921 listings available.
• Price trend: Prices have softened 4.09% compared with last year.
• Clean inventory: 53.5% of listings are accident-free.

If you find a listing below $17,214, 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 $17,338 sits slightly below last year's $18,076.

That softer pricing can help you buy at a more favorable entry point, but it also means future resale gains may be more limited unless the car is especially clean and well maintained. If you plan to sell later, condition and documentation will matter a lot because buyers tend to pay more for examples that look cared for and have a strong ownership record.

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:

• 35.4% of listings are priced as good or great deals.
• At 53.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 4.09% compared with last year.
• Owners rate it 4.9/5 — a strong satisfaction signal.

The bottom line: You should start with the 2018 if you want the strongest mix of current pricing, broad inventory, and high owner satisfaction. If you are especially price-sensitive, a nearby year may still be worth comparing, but the 2018 gives you a compelling balance of value and shopper choice.

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

These recommendations are based on CarGurus' proprietary market data from October 27, 2026, CarGurus experts' opinions, and generative AI.