Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
2021 BMW X3 M
for sale
near
Fullerton, CA
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Vehicle information
Features
Reviews
I recently purchased my dream car from BMW of Ocala.
I recently purchased my dream car from BMW of Ocala. It was my first ever car build according to my specifications and color choice, Vegas Red . Kevin and the entire dealership team went far beyond my expectations . From start to finish, everything was first class even to the red bow on my Red 2026 BMW convertible ! Kevin made sure that I was fully informed about all the special features and capabilities. My own special Genius walked me through the amazing safety features on my car . I felt so special !!!! BMW of Ocala deserves the 2025 Consumer Satisfaction Award and Kevin deserves all his Outstanding Salesman trophies.
I’ve owned my 2021 BMW X3 M for a while now, and it’s
I’ve owned my 2021 BMW X3 M for a while now, and it’s honestly one of the most underrated performance SUVs BMW has ever built. The S58 engine is an absolute animal — smooth when you want it to be, but brutally fast the moment you put your foot down. It still blows my mind that something this practical can pull this hard. The handling is what really sets it apart. For an SUV, it feels planted and confidence-inspiring, especially in Sport Plus. Steering is sharp, body roll is minimal, and it genuinely feels closer to an M3 than an X3. Interior quality is exactly what you’d expect from BMW — comfortable, solid, and well thought out for daily driving. Maintenance-wise, staying on top of service is key with these cars, especially with how hard they’re meant to be driven. I’ve learned a lot about the platform and common service items just from owning it, and having a knowledgeable BMW specialist makes a big difference. I’ve come across helpful BMW-specific service info and ownership insights through https://www.bavarianautowerke.com , which has been useful for understanding long-term care and expectations. Overall, the X3 M is the perfect balance of performance, utility, and everyday comfort. If you want M-car excitement without giving up space or practicality, it’s hard to beat.
Vehicle information
Features
Reviews
This is our third BMW X3 from BMW of West Houston (Oct 4,
This is our third BMW X3 from BMW of West Houston (Oct 4, 2025), and once again, the experience was exceptional. Berj Khanoyan, sales manager, was extremely professional throughout the entire process, making everything seamless and stress-free. His team, especially Ranya and Aria, went above and beyond to ensure every detail of our new car was handled with great care. Their dedication and attention to detail made the delivery process impeccable, the car was presented in the cleanest and most pristine condition imaginable. We truly appreciate the outstanding service and commitment from the entire team. BMW of West Houston's team truly exemplifies the five-star service at its finest. Their professionalism, attention to detail, and genuine care reflect the very best of what Houston has to offer. From start to finish, the experience was seamless and elevated, an embodiment of excellence that sets the standard for luxury automotive service. Once again, Berj, Ranya and Aria, thank you so very much for all you do!
Happy with my 4th BMW
The car performs well on the highway and has significant acceleration for Interstate driving. Ample room for vacation trips to take luggage and golf clubs.
Used
2021 BMW X3 M AWD
Vehicle information
Features
Reviews
Had a great experience at Daytona.
Had a great experience at Daytona. Miguel was very helpful in assisting us with our purchase. The body work that was done is fabulous and much appreciated. Levi helped with picking up the truck and promptly ordered the turn signals for us. I’ll definitely refer you to my friends.
Very clean and smooth car!
Plenty of space. Smooth when driving on the road with pot holes etc. The panorama roof is very nice to have as it opens up the inside of the car and let’s so much better light in. Creates more space.
Used
2021 BMW X3 M Competition
Vehicle information
Features
Reviews
we were looking for a ‘22 bentley fying spur.
we were looking for a ‘22 bentley fying spur. they had this white one with only 5k miles with good service history. we were helped by Jennifer Im who assisted us all the way , from walking us by video, preparing all the necessary documents for the purchace and transporting out of state. we are waiting now for the car to arrive
Sporty and functional
Perfect cargo size and no sacrifice in performance. I'm 6'2" and don't feel cramped. M40i engine and suspension make this a fun car to drive. Love the blue color!
Used
2021 BMW X3 M AWD
Vehicle information
Features
Reviews
This was our second day of looking at cars and nobody
This was our second day of looking at cars and nobody treated us better than Sewell Lexus. We came to buy a used Subaru Ascent; they had the car clean, ready and nearby for us to test drive. We got what we expected for our trade in and left in just a few hours very happy. I highly recommend Sewell Lexus of Dallas, they were great!
The second M version BMW to own.
Had X4M40I previously, which was a great vehicle, but this new X3M Competition has more interior space, better styling, and lightning performance. Wife and I have always enjoyed performance vehicles and this X3 delivers the fun.
Vehicle information
Features
Reviews
Excellent in every way.
Excellent in every way. Tanya was very informative and helpful. I will definitely shop with her once I’m financially able
Used
2021 BMW X3 M AWD
Vehicle information
Features
Reviews
Very happy with the service and the car
I bought a car from them in August 2020 and was very happy with them in many ways. They were very straight forward and very confident about their car. They were very helpful and nice at the same time not only the price was fair but, they even gave me a discount as well. They seemed to be more interested in keeping customer satisfied than making more money. I would recommend them to anybody who is looking for a used car. Gholam MD.
Used
2021 BMW X3 M AWD
Vehicle information
Features
Reviews
The experience at power motor east was very welcoming.
The experience at power motor east was very welcoming. The staff are professional and courteous. All the cars are Top of the line. Ivan. P was great and I love my new car
Vehicle information
Features
Reviews
Better than other dealers
Recently purchased and process was swift and handled well. Felt compelled to “try” other brands over the past several years. Some good and some bad but it’s the total process of car ownership that drew us back to BMW. BMW prett much outmatches most brands as far as driving dynamics. Most importantly the care and gratitude of service has helped us return to the brand. The team has done a great job to make it an easy decision to purchase again.
Vehicle information
Features
Reviews
Sonny was very helpful with everything and made
Sonny was very helpful with everything and made purchasing very easy and straight forward. Very happy!
Used
2021 BMW X3 M AWD
Vehicle information
Features
Reviews
Kevin S
We were lead to Holman Lincoln by John Spoltore approx 2 1/2 years ago. He set us up with Lee Ann Phifer and this started our relationship with the Holman Organization. She was amazing, honest and sincere throughout the process, maki ng our buying experience a great success. As we looked to make another purchase, our choice was simple, LeeAnn, Holman and Lincoln would be the right decision. Again, she was outstanding, surpassing our original purchase experience. Her concern for our needs was her main interest. She made our purchase great again. Also, Greg Soden did a great job handling the financial aspects of the buying experience. He is highly professional and a superb asset to your team. In conclusion, we are pleased to refer LeeAnn, Holman and Lincoln to our friends and family as we were treated like family by your team.. And this shows. Thank you for all you have done. Kevin & Brenda Smaniotto
Vehicle information
Features
Reviews
Always great service here- Ben Trask is a pleasure to
Always great service here- Ben Trask is a pleasure to work with and does a great job!
Vehicle information
Features
Vehicle information
Features
Reviews
Best experience ever in my 30 years of buying cars ,
Best experience ever in my 30 years of buying cars , polite, accommodating listened to my needs and desires for what kind of car I wanted, will definitely be going back to Peter’s to see Miguel T for future cars and trucks
Vehicle information
Features
Reviews
Best place around.
Best place around. Best cars, best people. Easy to see why they are voted number 1.
Vehicle information
Features
Vehicle information
Features
Reviews
purchased a m340i from this dealer after going through
purchased a m340i from this dealer after going through other ones numerous times, David was very helpful throughout the whole process, would do business again!
There are 20 matching cars close to your year range.
Used
2020 BMW X3 M Competition
Vehicle information
Features
Used
2020 BMW X3 M AWD
Vehicle information
Features
BMW Certified
2023 BMW X3 M AWD
Vehicle information
Features
Used
2020 BMW X3 M Competition
Vehicle information
Features
Used
2020 BMW X3 M AWD
Vehicle information
Features
Used
2023 BMW X3 M AWD
Vehicle information
Features
Used
2022 BMW X3 M AWD
Vehicle information
Features
Used
2020 BMW X3 M Competition
Vehicle information
Features
Vehicle information
Features
Used
2020 BMW X3 M SPORTS ACTIVITY V
Vehicle information
Features
Vehicle information
Features
Used
2022 BMW X3 M Competition
Vehicle information
Features
Used
2023 BMW X3 M AWD
Vehicle information
Features
Used
2020 BMW X3 M Competition
Vehicle information
Features
Used
2022 BMW X3 M Competition
Vehicle information
Features
Used
2020 BMW X3 M AWD
Vehicle information
Features
Used
2022 BMW X3 M AWD
Vehicle information
Features
Vehicle information
Features
BMW Certified
2022 BMW X3 M AWD
Vehicle information
Features
Used
2020 BMW X3 M AWD
Vehicle information
Features
-
Prev - 1
-
Next
About the 2021 BMW X3 M
AWD shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- All-wheel drive
- Combined MPG
- 16
- Transmission
- 8-Speed A/T
- Engine
- 473.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Gasoline Fuel)
How much does the 2021 BMW X3 M cost?
The 2021 BMW X3 M price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 X3 M is $46,034, with pricing starting at $32,500.
What is the MPG of the 2021 BMW X3 M?
The 2021 BMW X3 M offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 BMW X3 M?
The 2021 BMW X3 M compares to and/or competes against the following vehicles:
Is the 2021 BMW X3 M reliable?
The 2021 BMW X3 M has an average reliability rating of 4.8 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 X3 M owners.
Is the 2021 BMW X3 M a good SUV?
Below are the Cars.com consumer ratings for the 2021 BMW X3 M.
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 4.8
- Exterior 4.8
- Reliability 4.8
100% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 4.8
- Exterior 4.8
- Reliability 4.8
AWD (1 style)
| Style |
|---|
| Sports Activity Vehicle |
| Inventory price |
| Starting at $69,900 |
| Combined MPG |
| 16 |
| Engine |
| 473.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Research the 2021 BMW X3 M
Compare the 2021 BMW X3 M
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
