Used 2020 BMW X3 M for SaleNationwide

How much does the 2020 BMW X3 M cost?

Prices have softened 4.79% compared to this time last year, making it a favorable time to shop this model year.

There are 97 listings available, which suggests a modest amount of inventory for shoppers to compare.

Is the 2020 BMW X3 M a good car?

Yes — it earns a 4.9/5 user rating and an 8.3/10 expert rating. The model scores 9/10 across Performance, Form and function, Technology, and Safety.

Owners consistently praise its impressive power, sporty handling, and stylish design, and they also like that it feels strong both on the track and in everyday driving. The overview points to a performance-focused SUV that still delivers the utility you expect, while the expert review reinforces that it looks good and drives even better. The main trade-offs are a subdued exhaust note and fuel economy that may not satisfy everyone.

With 33.0% of listings marked as good or great deals, there is still room to shop carefully and find value.

Is the 2020 BMW X3 M reliable?

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

The user feedback points to a vehicle that owners feel good about living with, especially because they praise its power and sporty character while still using it as an everyday SUV. The expert review also describes the X3 M as a well-engineered performance SUV with a straightforward design and strong driving manners, which supports the idea that it should hold up well as a used purchase.

BMW includes three-year/36,000-mile maintenance, including a brake flush and spark plugs, which helps reduce early ownership costs. For used buyers, the bigger long-term risk is that a high-performance SUV can be expensive to keep in top shape if it has been driven hard or poorly maintained.

What should I look for when buying a used 2020 BMW X3 M?

At 68% 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 the listing has any accident history or incomplete service records. Focus on condition, maintenance consistency, and signs of hard use, since this is a performance-oriented SUV that may have been driven more aggressively than a typical family crossover. Pay extra attention to how the car presents inside and out, because the overview and expert review both emphasize that this model is meant to feel special.

Key things to evaluate:

• Trim level: The X3 M stands apart from the rest of the lineup with its M-exclusive look, including black quad exhaust pipes, aggressive front intakes, blue brake calipers, and one-piece bucket seats with hardcore bolstering. Compared with the calmer X3 trims, it is the one that most clearly prioritizes performance character over everyday understatement.
• Powertrain: The X3 M uses a twin-turbo 3.0-liter inline six-cylinder engine, and the standard X3 M makes 473 hp. The expert review describes it as smooth, sonorous, and always ready to respond, with multiple drive settings for the engine, transmission, steering, suspension, and AWD system.
• Safety package: The standard safety equipment includes pedestrian detection, adaptive cruise control, parking sensors, and forward emergency braking. Blind-spot monitoring, lane-departure warning, lane keep assist, evasive steering assist, Traffic Jam Assist, and auto high beams are tied to optional packages, so you should confirm exactly what is on the car you are considering.
• Infotainment: The system includes standard navigation, wireless Apple CarPlay, a sharp touchscreen, and onboard access to the owner’s manual. Android Auto is not offered, and wireless charging and a WiFi hotspot are optional.
• Fuel efficiency: The expert review says the X3 M returned 15 mpg in testing and is rated at 14/19/16.

Which 2020 BMW X3 M trim should I buy?

The 2020 BMW X3 M is offered in 1 trim level: X3 M.

Here's the short version:

The X3 M is the one to buy if you want the full performance experience, because it brings the M-specific styling, track-tuned chassis, and the strongest engine in the lineup. It is the clear choice for you if you care most about sharp handling and serious power rather than comfort-first commuting. The expert review also notes that the ride is firm, so this trim suits you best if you want the most capable and most characterful version of the X3.

The safety package is not fully standard, so make sure the specific vehicle you are considering has the driver-assistance features you want.

Is now a good time to buy a used 2020 BMW X3 M?

This is a moderate market for selective buyers, so you can shop with some leverage if you are patient.

• Deal availability: 33.0% of listings are priced as good or great deals.
• Inventory: There are 97 listings available.
• Price trend: Prices have softened 4.79% compared with last year.
• Clean inventory: 68.0% of listings are accident-free.

If you find a listing below $42,643, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2020 BMW X3 M's resale value?

The current average of $42,847 sits slightly below last year's $45,004.

That price movement suggests the market has softened, which can help you buy more affordably now but may also limit upside if you plan to resell soon. For a future seller, the key takeaway is that this model year is already priced below where it was a year ago, so holding value will depend heavily on condition, mileage, and maintenance history. A well-kept example should still attract interest because it combines performance, utility, and strong owner satisfaction.

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.

Is the 2020 BMW X3 M safe?

The 2020 X3 is rated a Top Safety Pick+ by the Insurance Institute for Highway Safety (IIHS) for the best scores in six crash tests, optional adaptive bi-LED headlights, and the standard forward emergency braking. The National Highway Traffic Safety Administration (NHTSA) rated the 2020 X3 five out of five stars overall and for all three crash tests in all tested passenger configurations.

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

The standard safety equipment includes pedestrian detection, adaptive cruise control, parking sensors, and forward emergency braking. Blind-spot monitoring and lane-departure warning are optional on the Driving Assistance Package, while the Plus version adds lane keep assist, evasive steering assist, and Traffic Jam Assist for semi-automated control. Auto high beams are part of another package. Knee airbags are not available.

Should I buy a 2020 BMW X3 M 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:

• 33.0% of listings are priced as good or great deals.
• At 68% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 4.79% compared with last year.
• Owners rate it 4.9/5 — a strong satisfaction signal.
• The expert review highlights that this year combines strong performance with a straightforward design that should still appeal years from now.

The bottom line: If you want the most distinctive, performance-first version of the X3, the 2020 is the right path because it delivers the M character, strong owner satisfaction, and a softer used-car price than a year ago. If you are more price-sensitive, you may want to compare it with a calmer X3 trim, since the standard models offer more comfort and better fuel economy for less money.

How does the 2020 BMW X3 M compare to the 2020 Audi Q5?

These recommendations are based on CarGurus' proprietary market data from November 3, 2026, CarGurus experts' opinions, and generative AI.