Used 2020 BMW 3 Series for SaleNationwide

Compare 2020 BMW 3 Series Trims

The 2020 BMW 3 Series offers a range of trims from budget-friendly options to performance-oriented models, catering to various driving preferences.

• Starting at $20,733
• Best MPG/MPGe: 26 city / 36 hwy
• Most Popular: 330i Sedan RWD

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

330i Sedan RWD — "Who It's For"

The 330i Sedan RWD is the pick for shoppers who want a well-rounded luxury sedan without paying for higher trims. It's also the most popular trim in the lineup.

• Avg. market price: $20,733 (updated weekly)
• MPG/MPGe: 26 city / 36 hwy
• Inventory: 619 listings
• View 330i Sedan RWD listings

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

The 330i xDrive Sedan AWD is ideal for those who want all-wheel drive without a significant price increase. It balances performance and practicality well.

• Avg. market price: $22,223 (updated weekly)
• MPG/MPGe: 25 city / 34 hwy
• Inventory: 610 listings
• View 330i xDrive Sedan AWD listings

M340i Sedan RWD — "Who It's For"

The M340i Sedan RWD is for enthusiasts seeking a sportier drive with more power, without going for the top-tier M340i xDrive.

• Avg. market price: $34,882 (updated weekly)
• MPG/MPGe: 22 city / 30 hwy
• Inventory: 63 listings — lower availability; may limit negotiating room
• View M340i Sedan RWD listings

M340i xDrive Sedan AWD — "Who It's For"

The M340i xDrive Sedan AWD is perfect for those who want a high-performance sedan with all-wheel drive capabilities for enhanced traction and control.

• Avg. market price: $38,282 (updated weekly)
• MPG/MPGe: 22 city / 30 hwy
• Inventory: 59 listings — lower availability; may limit negotiating room
• View M340i xDrive Sedan AWD listings

Trim Recommendations

Most Popular — 330i Sedan RWD

With 619 active listings, the 330i Sedan RWD is the clear volume leader in the lineup.

Browse 330i Sedan RWD listings

Best Budget Option — 330i Sedan RWD

At $20,733 avg market price — below the lineup median of $28,552 — it's the most accessible entry point.

Browse 330i Sedan RWD listings

Best for Fuel Economy — 330i Sedan RWD

With 26/36 MPG, the 330i Sedan RWD leads the lineup in fuel efficiency.

Browse 330i Sedan RWD listings

These recommendations are based on CarGurus' proprietary market data from September 24, 2026, CarGurus experts' opinions, and generative AI.

How much does the 2020 BMW 3 Series cost?

Prices have softened 5.04% compared to this time last year, making it a favorable time to shop this model year.

There are 1,519 listings available, which gives you a solid pool of options to compare.

Is the 2020 BMW 3 Series a good car?

Generally — the 2020 BMW 3 Series earns a 4.14/5 user rating and an 8.17/10 expert rating. The standout strength is Performance at 10/10.

Owners consistently praise its design, performance, and comfortable interior, and the M340 variant gets especially strong feedback for power and driving dynamics. The car is also described as fun to drive and powered by a strong engine, which fits its performance-first personality.

The trade-offs are that the design may be polarizing and value for money is weak. That makes it a better fit if you want a sporty sedan that still works for daily use than if you’re shopping strictly for the lowest-cost luxury car.

Good and great deals account for 33.5% of listings, so there is some room to shop selectively.

Is the 2020 BMW 3 Series reliable?

Owners rate it 4.14/5, a solid signal of long-term satisfaction.

The owner feedback points to a car people feel good about living with over time, especially because many drivers describe it as comfortable and enjoyable to own. The review summary also suggests a dependable-feeling ownership experience, with praise centered on the car’s design, performance, and interior comfort.

BMW includes free scheduled maintenance for the first three years or 36,000 miles of ownership, which helps reduce early ownership costs. Even so, this is still a premium sedan with high sticker prices and expensive options, so long-term ownership risk is more about cost exposure than basic durability.

What should I look for when buying a used 2020 BMW 3 Series?

At 72.1% 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 prior damage was repaired properly. A pre-purchase inspection matters here, especially if you’re comparing cars with similar prices but different condition histories.

Pay close attention to cabin condition, electronics, and how the car drives at low speeds and on rough pavement. Because this model is positioned as a driver’s car, you want one that still feels tight, quiet, and well cared for.

Key things to evaluate:

• Trim level: The base 330i starts at a much lower price than the M340i, while the M340i adds a more serious performance character and a richer equipment feel. If you want the best value, the 330i is the trim that most clearly balances enthusiast appeal with a lower entry price.
• Powertrain: The M340i uses a turbocharged 3.0-liter inline 6-cylinder engine with 382 horsepower and 369 pound-feet of torque, paired with xDrive all-wheel drive and an 8-speed automatic transmission. It is the trim for you if you want the strongest acceleration and the most engaging driving experience.
• Safety package: BMW says you need two Driving Assistance option packages to get all of its latest advanced driver-assistance systems. The standard lane-keeping assist is described as abrupt, so you should verify which assistance features are actually fitted on the car you’re considering.
• Infotainment: The system includes a touchscreen display, natural voice recognition, gesture control, and the familiar center-console controller. The touchscreen and voice assistant are strong points, while the flatter control layout can be harder to use by touch.
• Fuel efficiency: No fuel-economy figure is stated in the available data.

Which 2020 BMW 3 Series trim should I buy?

The 2020 BMW 3 Series is offered in 2 trim levels: 330i and M340i.

Here's the short version:

• 330i: This is the trim that makes the most sense if you want the 3 Series experience without stretching too far on price. The data points to a strong everyday luxury-sedan formula, and BMW’s own commentary suggests enthusiasts could be very happy here while saving a meaningful amount versus the M340i.
• M340i: This is the clear choice if you care most about performance. It adds the turbocharged inline-six, xDrive, and the most serious chassis and brake hardware in the lineup, making it the best fit for you if driving enjoyment is your top priority.

For safety equipment, BMW says you need the available Driving Assistance packages to get all of the brand’s latest advanced driver-assistance systems.

Is now a good time to buy a used 2020 BMW 3 Series?

This is a moderate market for selective buyers, so you can shop carefully without expecting a deep bargain on every listing.

• Deal availability: 33.5% of listings are priced as good or great deals.
• Inventory: There are 1,519 listings available.
• Price trend: Prices have softened 5.04% compared with last year.
• Clean inventory: 72.1% of listings are accident-free.

If you find a listing below $23,619, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 BMW 3 Series's resale value?

The current average of $24,093 sits slightly below last year's $25,372.

That price decline suggests the market has already adjusted downward, which can help you as a buyer but may limit upside if you plan to resell soon. For a future seller, the key takeaway is that this model year is not currently in a rising-price phase, so condition and equipment will matter more when it’s time to list.

Because the average price is lower than it was a year ago, you should expect resale value to depend heavily on mileage, maintenance history, and trim. Well-kept examples with desirable equipment should hold up better than rougher cars with fewer options.

Vehicles with solid owner satisfaction ratings, like this model year's 4.14/5, tend to retain buyer demand, which supports resale value over time.

Is the 2020 BMW 3 Series safe?

The 2020 BMW 3 Series earns a Top Safety Pick+ rating from IIHS when equipped with the adaptive full LED headlights.

It earns a 9/10 safety score from our experts.

BMW says you need two Driving Assistance option packages to get all of its latest advanced driver-assistance systems. The lane-keeping assist is standard in the sense that it is discussed as part of the car’s ADAS behavior, but BMW’s own notes make clear that the full suite requires optional packages.

A caveat worth noting is that BMW’s own test-drive commentary describes the assistance systems as accurate but sometimes not especially smooth, and the lane-keeping assist can feel abrupt. If you want the most advanced safety tech, you should verify the exact package content on any used example.

Should I buy a 2020 BMW 3 Series or consider a different year?

If you're weighing the 2020 against nearby model years, here's how to think about it:

Choose the 2020 if:

• 33.5% of listings are priced as good or great deals.
• At 72.1% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 5.04% compared with last year.
• Owners rate it 4.14/5 — a solid satisfaction signal.
• BMW’s own summary emphasizes that the arrival of the M340i proves there is substance behind the brand’s performance-first slogan.

Consider the 2019 if:

• At $20,584, the 2019 costs less than the current year's $24,093 average.
• It is a trim, athletic, and premium-feeling sport sedan with a more modern software experience.

Consider the 2021 if:

• At $25,430, the 2021 costs more than the current year's $24,093 average.
• It adds the 330e plug-in hybrid model and leans more toward comfort and convenience.

The bottom line: If you want the strongest blend of performance, comfort, and current-market pricing, the 2020 is the one to target. If you’re especially price-sensitive, the 2019 is the better value play, while the 2021 makes sense if you want the newer-year lineup and are willing to pay more.

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