Used 2020 BMW X3 M for Sale near Wisconsin

How much does the 2020 BMW X3 M cost?

Prices are up 1.79% year-over-year — a sign of continued demand for this model year.

There are 96 listings available, which gives you a modest amount of inventory to compare before you buy.

If you find a listing below $42,749.73, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2020 BMW X3 M a good car?

Yes — the 2020 BMW X3 M earns a 4.88/5 user rating and an 8.33/10 expert rating. The model scores 9/10 across Performance, Form and function, Technology, and Safety.

Drivers consistently praise its impressive power, sporty handling, and stylish design, and many also like how it works for both track driving and everyday use. The main trade-offs are a subdued exhaust note and fuel economy that may not satisfy everyone.

That fits the X3 M’s role well: you’re getting a performance-focused luxury SUV that still keeps the X3’s practical, straightforward appeal. With 35.4% of listings marked as good or great deals, you have some room to shop selectively.

Is the 2020 BMW X3 M reliable?

Owners rate it 4.88/5, a strong signal of long-term satisfaction.

User feedback points to a vehicle people feel good about living with over time, with praise centered on performance that stays satisfying in daily use. The expert review also describes the X3 as a model that should still appeal to buyers years from now, which supports the case for durability in ownership appeal.

BMW also 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 not basic satisfaction but the possibility of higher repair and upkeep costs if the vehicle has been poorly maintained.

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

Accident-free inventory is solid at 81.3% — always verify the vehicle history report.

You should still check the history report carefully, because a clean listing percentage does not replace a proper vehicle-by-vehicle review. Prioritize a pre-purchase inspection, especially on a performance SUV where brakes, tires, suspension, and electronics can be more expensive to refresh. Focus on overall condition and maintenance records, since this model’s appeal depends heavily on how well it has been cared for.

Key things to evaluate:

• Trim level: The standard X3 lineup emphasizes sporty driving and a high-quality cabin, while the M version adds a much more aggressive exterior, black quad exhaust pipes, gaping front intakes, blue brake calipers, bucket seats, and carbon-fiber interior trim. The base X3 trims are more comfort-oriented and do not deliver the same M-specific look or hardware.
• Powertrain: The X3 M uses a twin-turbo 3.0-liter inline six-cylinder engine, with the Competition version making 503 horsepower and 442 pound-feet of torque; the regular X3 M makes 473 hp and uses 20-inch wheels. The setup is track-tuned, with ultra-responsive steering, strong grip, and a stiff ride.
• Safety package: The X3 includes standard forward emergency braking, pedestrian detection, adaptive cruise control, and parking sensors. 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. Knee airbags are not available.
• Infotainment: You get standard navigation, a sharp touchscreen, wireless Apple CarPlay, and no Android Auto. The system also includes onboard manual access, 360-degree cameras, gesture control, and optional wireless charging and WiFi hotspot support.
• Fuel efficiency: The X3 M is rated at 14/19/16 mpg, and the review notes an indicated 15 mpg in testing.

Which 2020 BMW X3 M trim should I buy?

The 2020 BMW X3 M is offered in 2 trim levels: X3 M and X3 M Competition.

Here's the short version:

• X3 M: This is the better fit if you want the core M experience without chasing the highest output figure. It still delivers the twin-turbo inline-six, track-tuned handling, and the aggressive M look, so it gives you the main reason to buy the model in the first place.
• X3 M Competition: This is the one to choose if you want the most extreme version, with 503 horsepower, 442 pound-feet of torque, and the full hard-edged character described in the test drive. It is the best match if outright performance matters more than comfort or efficiency.

For safety, note that advanced driver-assistance features are not standard, so you should look closely at whether a given vehicle has the Driving Assistance Package or the Plus version.

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

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

• Deal availability: 35.4% of listings are priced as good or great deals.
• Inventory: There are 96 listings available.
• Price trend: Prices are up 1.79% year-over-year.
• Clean inventory: 81.3% of listings are accident-free.

If you find a listing below $42,749.73, 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 $45,496 sits slightly above last year's $44,696.

That kind of price movement suggests the market has held up reasonably well for this model year. If you buy carefully and keep the vehicle in strong condition, you may be better positioned when it comes time to sell. The limited supply of clean examples can also help support pricing for well-kept trucks.

Vehicles with strong owner satisfaction ratings, like this model year's 4.88/5, 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), and the National Highway Traffic Safety Administration (NHTSA) rated it five-star overall and for all three crash tests in all tested passenger configurations.

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

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.

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:

• 35.4% of listings are priced as good or great deals.
• Accident-free inventory is solid at 81.3% — always verify the vehicle history report.
• Price trend: Prices are up 1.79% year-over-year.
• Owners rate it 4.88/5 — a strong satisfaction signal.
• The 2020 model stands out for pairing the X3’s practical, straightforward design with a much more aggressive M personality, while still keeping everyday usability intact.

The bottom line: If you want the most distinctive version of the X3 with serious performance and strong owner satisfaction, the 2020 is a compelling choice. If you’re more price-sensitive, you can still shop the broader X3 lineup for a calmer, more comfortable alternative that may be easier to live with and cheaper to own.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.