Used 2018 BMW 3 Series for Sale near Pennsylvania

Compare 2018 BMW 3 Series Trims

The 2018 BMW 3 Series offers a range of trims from budget-friendly options to sportier models, catering to various preferences and driving needs.

• Starting at $12,404
• Best MPG/MPGe: 66 city / 78 hwy
• Most Popular: 330i xDrive Sedan AWD

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

320i Sedan RWD — "Who It's For"

The 320i Sedan RWD is the pick for shoppers who want a luxury sedan experience without paying for higher trims. It's the most budget-friendly option in the lineup.

• Avg. market price: $12,404 (updated weekly)
• MPG/MPGe: 24 city / 35 hwy
• Inventory: 360 listings
• View 320i Sedan RWD listings

320i xDrive Sedan AWD — "Who It's For"

The 320i xDrive Sedan AWD is the pick for shoppers who want all-wheel drive without a hefty price tag. It offers a balance of performance and practicality.

• Avg. market price: $13,202 (updated weekly)
• MPG/MPGe: 23 city / 34 hwy
• Inventory: 343 listings
• View 320i xDrive Sedan AWD listings

330i Sedan RWD — "Who It's For"

The 330i Sedan RWD is the pick for shoppers who want a blend of performance and luxury without going for the top-tier trims. It provides a solid driving experience.

• Avg. market price: $14,112 (updated weekly)
• MPG/MPGe: 24 city / 34 hwy
• Inventory: 604 listings
• View 330i Sedan RWD listings

330i xDrive Sedan AWD — "Who It's For"

The 330i xDrive Sedan AWD is the pick for shoppers who want sporty performance combined with all-wheel drive capability. It's the most popular trim in the lineup.

• Avg. market price: $16,020 (updated weekly)
• MPG/MPGe: 23 city / 33 hwy
• Inventory: 605 listings
• View 330i xDrive Sedan AWD listings

328d xDrive Sedan AWD — "Who It's For"

The 328d xDrive Sedan AWD is the pick for shoppers who want diesel efficiency with all-wheel drive. It's a great option for those needing better fuel economy.

• Avg. market price: $16,096 (updated weekly)
• MPG/MPGe: 30 city / 40 hwy
• Inventory: 47 listings — lower availability; may limit negotiating room
• View 328d xDrive Sedan AWD listings

330e iPerformance Sedan RWD — "Who It's For"

The 330e iPerformance Sedan RWD is the pick for shoppers who want a hybrid option with excellent fuel economy. It's ideal for eco-conscious drivers.

• Avg. market price: $14,711 (updated weekly)
• MPG/MPGe: 66 city / 78 hwy
• Inventory: 78 listings — lower availability; may limit negotiating room
• View 330e iPerformance Sedan RWD listings

340i Sedan RWD — "Who It's For"

The 340i Sedan RWD is the pick for shoppers who want a powerful engine and luxury features without going for the highest trim. It offers a sporty driving experience.

• Avg. market price: $25,767 (updated weekly)
• MPG/MPGe: 21 city / 32 hwy
• Inventory: 71 listings — lower availability; may limit negotiating room
• View 340i Sedan RWD listings

340i xDrive Sedan AWD — "Who It's For"

The 340i xDrive Sedan AWD is the pick for shoppers who want top-tier performance with all-wheel drive. It's perfect for those seeking luxury and capability.

• Avg. market price: $28,861 (updated weekly)
• MPG/MPGe: 21 city / 31 hwy
• Inventory: 86 listings — lower availability; may limit negotiating room
• View 340i xDrive Sedan AWD listings

Trim Recommendations

Most Popular — 330i xDrive Sedan AWD

With 605 active listings, the 330i xDrive Sedan AWD is the clear volume leader in the lineup.

Browse 330i xDrive Sedan AWD listings

Best Budget Option — 320i Sedan RWD

At $12,404 avg market price — below the lineup median of $15,365 — it's the most accessible entry point.

Browse 320i Sedan RWD listings

Best for Fuel Economy — 330e iPerformance Sedan RWD

With an impressive MPG/MPGe of 66 city / 78 hwy, the 330e iPerformance Sedan RWD is the most fuel-efficient option.

Browse 330e iPerformance Sedan RWD listings

These recommendations are based on CarGurus' proprietary market data from October 22, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2018 BMW 3 Series cost?

Prices have softened 5.73% compared to this time last year, making it a favorable time to shop this model year.

There are 1,205 listings available, which suggests you should have a reasonable amount of inventory to compare.

Is the 2018 BMW 3 Series a good car?

Yes — the 2018 BMW 3 Series earns a 4.5/5 user rating, which points to strong owner satisfaction. Owners consistently praise the performance, ride quality, powerful acceleration, and smooth handling, and the model’s compact luxury-sedan setup makes it appealing if you want a car that feels practical and engaging. The tradeoff is that the cabin can feel cramped and some shoppers may want more luxury features, but the overall package fits buyers who value driving enjoyment and premium character. With 33.8% of listings marked as good or great deals, you have a decent chance of finding a competitive offer.

Is the 2018 BMW 3 Series reliable?

Owners rate it 4.5/5, a strong signal of long-term satisfaction.

The owner feedback points to a car that many drivers find dependable in day-to-day use, with praise centered on smooth handling and a satisfying driving experience. Mentions of the absence of a spare tire and tire sensor concerns suggest you should still pay attention to condition and maintenance history. For used buyers, the main long-term ownership risk is less about the driving experience and more about how well the car has been cared for over time.

What should I look for when buying a used 2018 BMW 3 Series?

At 56.2% 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 that focuses on body condition, signs of repair, and any wear that could affect long-term ownership costs. Because this model can be expensive to maintain, you’ll want to pay close attention to overall condition rather than just mileage or trim level.

Is now a good time to buy a used 2018 BMW 3 Series?

This looks like a moderate, selective buyer’s market, so you can shop carefully without feeling rushed.

• Deal availability: 33.8% of listings are priced as good or great deals.
• Inventory: There are 1,205 listings available.
• Price trend: Prices have softened 5.73% compared with last year.
• Clean inventory: 56.2% of listings are accident-free.

If you find a listing below $14,801, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 BMW 3 Series's resale value?

The current average of $14,939 sits slightly below last year's $15,847.

That price movement suggests the market has already adjusted downward, which can make future resale a little more challenging if depreciation continues at the same pace. If you buy at a strong price and keep the car in excellent condition, you give yourself a better chance of limiting losses later. Strong demand for well-liked trims can still help, but the current trend favors buyers more than sellers.

Vehicles with strong owner satisfaction ratings, like this model year's 4.5/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2018 BMW 3 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:

• 33.8% of listings are priced as good or great deals.
• At 56.2% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 5.73% compared with last year.
• Owners rate it 4.5/5 — a strong satisfaction signal.

Consider the 2019 if:

• At $20,012, the 2019 costs more than the current year's $14,939 average.
• BMW adds a stronger software experience.

The bottom line: If you want the better value, the 2018 is the smarter starting point because it combines a lower average price with solid owner satisfaction and a decent share of deal-priced listings. If you’re willing to spend more for a newer feel and a more advanced digital experience, the 2019 is the better upgrade path. For most price-sensitive buyers, the 2018 is the more compelling buy.

How does the 2018 BMW 3 Series compare to the 2018 Audi A4?

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