How much does the 2020 BMW 3 Series cost?

Prices have softened 7.37% compared to this time last year, making it a favorable time to shop this model year.

There are 1,504 listings available, which suggests solid inventory for comparison shopping.

If you find a listing below $23,670.92, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2020 BMW 3 Series a good car?

Generally — 4.14/5 from owners and 8.17/10 from our experts point to a car that lands well with shoppers who value driving feel. The standout strength is Performance at 10/10.

Drivers repeatedly praise its beautiful design, performance, and comfortable interior, and the M340 variant gets especially strong marks for power and driving dynamics. The trade-offs are familiar: some owners mention cramped cabin space for taller people and a distracting interior noise level, while BMW also flags the design as potentially polarizing and the value proposition as weak.

That lines up with the overview: you’re looking at a premium sedan aimed at buyers who want an engaging drive without giving up everyday comfort. If that’s your priority, the 2020 3 Series makes a strong case for itself, especially if you’re shopping the better-equipped listings. 32.5% of listings are priced as good or great deals, so there are still some worthwhile opportunities in the market.

Is the 2020 BMW 3 Series reliable?

Owners rate it 4.14/5, a solid signal of long-term satisfaction. The owner summary also points to a car that many drivers found comfortable and enjoyable enough to keep recommending, with praise centered on performance and a well-liked interior.

BMW’s performance notes reinforce that this is a well-engineered sedan with strong hardware and a transmission tuned for real-world use. The cost-effectiveness notes also help on ownership planning: free scheduled maintenance is included for the first three years or 36,000 miles.

For used buyers, the main long-term risk is less about outright satisfaction and more about keeping ownership costs and condition in check, especially on higher-spec examples.

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

At 72% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and then prioritize a pre-purchase inspection, especially if you’re considering a higher-priced or option-heavy example. Focus on condition, equipment, and whether the car’s premium features still work as intended, since this model can be expensive to buy and equip.

Key things to evaluate:

• Trim level: The base 330i starts with a high price and leaves you wanting if you care about the richer appearance and personalization options highlighted on higher-spec cars. The M340i adds the more dramatic look and feel, along with a much more serious performance character.
• Powertrain: The M340i uses a turbocharged 3.0-liter inline 6-cylinder engine with 382 horsepower and 369 pound-feet of torque, paired with an 8-speed automatic transmission and rear-biased xDrive all-wheel drive. BMW says it reaches 60 mph in 4.1 seconds.
• Safety package: To get BMW’s latest advanced driver-assistance systems, you need to option two Driving Assistance packages. The systems can work accurately, but BMW notes that smoothness can be inconsistent, and lane-keeping assist can feel abrupt.
• Infotainment: The latest iDrive setup includes a touchscreen, natural voice recognition, and gesture control, along with the familiar controller and buttons. The touchscreen is easy to use, while gesture control is optional.
• Fuel efficiency: No mpg figures are provided here.

Which 2020 BMW 3 Series trim should I buy?

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

Here's the short version:

• Base trim: The 330i is the entry point, but it starts at a high price and doesn’t deliver the richer visual presence or performance punch of the M340i.
• Premium/top trim: The M340i is the one to target if you want the strongest blend of performance, luxury feel, and enthusiast appeal.

The safety-package note is simple: if you want BMW’s latest driver-assistance systems, you need to add the Driving Assistance packages.

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

This is a moderate, selective buyer’s market, so you can shop carefully without expecting every listing to be a bargain.

• Deal availability: 32.5% of listings are priced as good or great deals.
• Inventory: There are 1,504 listings available.
• Price trend: Prices have softened 7.37% compared with last year.
• Clean inventory: 72.0% of listings are accident-free.

If you find a listing below $23,670.92, 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 $23,844 sits slightly below last year's $25,742.

That price movement suggests the market has already adjusted downward, which can help you buy at a more favorable point in the cycle. If you plan to resell later, a lower entry price can reduce the amount of value you need to recover. Strong demand for well-kept examples should still help, especially for cars with desirable equipment and cleaner histories.

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 Insurance Institute for Highway Safety gives the 3 Series a Top Safety Pick+ rating 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 packages to get all of its latest advanced driver-assistance systems. The systems can be accurate, but BMW also notes that smoothness is sometimes lacking, and the lane-keeping assist can feel abrupt. That means you should pay close attention to which safety equipment is actually installed on any used example you’re considering.

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:

• 32.5% of listings are priced as good or great deals.
• At 72% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 7.37% compared with last year.
• Owners rate it 4.14/5 — a solid satisfaction signal.
• BMW says the M340i proves there is substance behind the “Ultimate Driving Machine” slogan.

Consider the 2019 if:

• At $20,882, the 2019 costs less than the current year's $23,844 average.
• It leans hard into BMW’s traditional sport-sedan formula and adds a stronger software focus.

Consider the 2021 if:

• At $25,863, the 2021 costs more than the current year's $23,844 average.
• It adds the 330e plug-in hybrid and broadens the lineup with more tech-forward appeal.

The bottom line: If you want the strongest mix of driving enjoyment and current-market value, the 2020 is the one to target. If your priority is spending less, the 2019 is the smarter budget play. If you want a newer-feeling lineup with more electrified choice, the 2021 is worth a look.

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