How much does the 2018 BMW 4 Series cost?

Prices have softened 4.08% compared to this time last year, making it a favorable time to shop this model year.

There are 863 listings available, which gives you a useful amount of inventory to compare before you commit.

If you find a listing below $17,214.96, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2018 BMW 4 Series a good car?

Yes — the 2018 BMW 4 Series earns a 4.92/5 user rating, which points to very strong owner satisfaction. Owners consistently praise its quality, performance, and luxury features, and they also like the smooth ride, sporty handling, and useful tech such as the sound system and navigation. For you, that means this model year fits especially well if you want a stylish premium coupe, convertible, or Gran Coupe with a sportier image and a well-equipped feel. With 32.6% of listings marked as good or great deals, you have some room to shop selectively.

Is the 2018 BMW 4 Series reliable?

Owners rate it 4.92/5, a strong signal of long-term satisfaction.

The owner feedback also points to quality and a trouble-free ownership experience for many drivers, with dependable performance and strong satisfaction around the car’s overall feel. That said, used luxury cars can still bring higher repair exposure if maintenance has been deferred, so you should focus on service history and condition before buying.

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

At 51.3% 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 pre-purchase inspection, especially if you’re considering a convertible or any car with higher mileage, since condition can vary a lot in this segment. Pay close attention to signs of wear, repair quality, and whether the car’s equipment and interior still match the premium experience you expect.

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

This is a moderate market, so you can shop selectively without expecting every listing to be a bargain.

• Deal availability: 32.6% of listings are priced as good or great deals.
• Inventory: There are 863 listings available.
• Price trend: Prices have softened 4.08% compared with last year.
• Clean inventory: 51.3% of listings are accident-free.

If you find a listing below $17,214.96, 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 $17,612 sits slightly below last year's $18,360.

That softer pricing suggests the market has become a bit more favorable for buyers, but it also means future sellers may need to stay realistic on asking price. If you buy well and keep the car in strong condition, you can help protect your position when it’s time to resell. Strong owner satisfaction also helps support demand, especially for shoppers looking for a premium car with a sporty image.

Vehicles with strong owner satisfaction ratings, like this model year's 4.92/5, 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:

• 32.6% of listings are priced as good or great deals.
• At 51.3% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 4.08% compared with last year.
• Owners rate it 4.92/5 — a strong satisfaction signal.

The bottom line:

The 2018 model year is a strong choice if you want a stylish, well-liked 4 Series with solid market support and a softer price than a year ago. If you’re more price-sensitive, you may want to compare nearby years and focus on the cleanest, best-maintained example rather than chasing the newest badge alone.

These recommendations are based on CarGurus' proprietary market data from August 21, 2026, CarGurus experts' opinions, and generative AI.