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*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.
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Used
2021 Mercedes-Benz GLS 450
for sale
near
Martin's Additions, MD
- 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.






Mercedes-Benz Certified
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
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Reviews
Excellent dealership!
Excellent dealership! The price you see on their advert page is the price you pay. That's so rare now since covid. Excellent salesman and Excellent finance department.
Love this car
This car met all my needs and more. Love the interior and the way its moves. So comfortable and reliable! Very pleased with this car!






Mercedes-Benz Certified
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
The proficiency, expertise and professionalism of Euro
The proficiency, expertise and professionalism of Euro Motorcars Bethesda is second to none. My review would be meaningless if I didn’t give very special acclaim to the key associate who contributed great to my extraordinary experience. BRADY INFIELD is one of your greatest assets. He exhibits the professionalism, courtesy, patience, energy, enthusiasm , character, empathy, intellectual curiosity, self control, and self esteem that any organization would need to to advance their agenda! After all, you sell classy cars so you should have class, such as Brady Infield, to embellish your mission. It’s small wonder Brady Infield is a rising star with an enormously bright future; he’s under the tutelage and support of Tyler Griffin. Thank you Tyler Griffin and Brady Infield!
Best SUV we've ever owned.
Exceptional vehicle in the SUV class. We drove the BMW X7, Audi Q7, Volvo XC90 and this GLS 450 just kept blowing them out of the water. The ride is amazing and we feel the comfort level and size is the best






Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Amazing experience.
Amazing experience. Bazil was fantastic, got me into the car I wanted at a great price and I will be back for more in the future!
You get what you pay for
We are in our first five months and I seriously believe all the safety options have kept me out of at least two accidents. The car on the highway practically drives itself while giving me a message. Audio systems are excellent. The 450 GLS makes driving a bit of a joy.






Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Great service.
Great service. Keep me informed of progress on my jeep. Good service on my jeep
Great car!
Luxurious to drive and very quiet riding car. I am very satisfied with the car. The electronices are a bit over whelming at first. Love the car.






Used
2021 Mercedes-Benz GLS 450 Base
Vehicle information
Features
Reviews
I enjoyed my test drive experience and the staff was
I enjoyed my test drive experience and the staff was attentive. However, the rep who worked with me and my boyfriend insisted on accompanying us on the test drive. No other rep had joined us at other lots, either private or dealership, so it seemed like more pressure and less privacy. We also had to tell the dealer that we’d meet him inside after talking privately. Again, pressure. That, plus no acknowledgement of the need for cosmetic repairs—duct tape under the seat, a hole worn through the driver’s car mat—made it fairly easy to walk away from a decent car.
Great Electronics and Engineering
This car is state of the art in human factors engineering. It has multiple layers of safety enhancements. Interior is very spacious. The 42 volt battery provides quick acceleration which allows the car to have no lag time when accelerating.






Used
2021 Mercedes-Benz GLS 450 4MATIC
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Reviews
Jeff Hever did a great job and we are very happy with our
Jeff Hever did a great job and we are very happy with our Atlas. Thank you!!






Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
excellent work, very professional, I recommend them to
excellent work, very professional, I recommend them to friends and family, thank you very much






Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
As always, the dealership does top quality work and I am
As always, the dealership does top quality work and I am very pleased with the job they did for my 2021 S585 sedan. I was especially impressed by the video of the proposed repairs and maintenance work - a new service that worked out very well. One aspect of this visit however could stand to be improved. It took 2.5 days to return my car to me, largely due to the unavailability of a check out driver to validate that the car was ready to go - at least that's what I was told.

Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
I didn’t get the car but in do time I will and I have
I didn’t get the car but in do time I will and I have told them my situation
Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
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Reviews
Service was prompt and professional.
Service was prompt and professional. My service agent Juan was quite courteous and knowledgeable. He clearly explained everything. It was a pleasure to deal with him.
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Used
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Vehicle information
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Used
2019 Mercedes-Benz GLS 450 4MATIC
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Features






Mercedes-Benz Certified
2023 Mercedes-Benz GLS 450 4MATIC
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Mercedes-Benz GLS 450 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 Mercedes-Benz GLS 450 | $92,510 | |
2025 Mercedes-Benz GLS 450 | $80,334 | 3 Good deals |
2017 Mercedes-Benz GLS 450 | $13,997 | 5 Great deals |
About the 2021 Mercedes-Benz GLS 450
4MATIC shown (base trim).
- Seating
- 6
- Door count
- 4
- Drivetrain
- All-wheel drive
- Combined MPG
- 21
- Transmission
- 9-Speed A/T
- Engine
- 362.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Gasoline/Mild Electric Hybrid)

How much does the 2021 Mercedes-Benz GLS 450 cost?
The 2021 Mercedes-Benz GLS 450 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 GLS 450 is $43,261, with pricing starting at $28,995.
What is the MPG of the 2021 Mercedes-Benz GLS 450?
The 2021 Mercedes-Benz GLS 450 offers up to 20 MPG in city driving and 24 MPG on the highway for a combined rating of 21 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 Mercedes-Benz GLS 450?
The 2021 Mercedes-Benz GLS 450 compares to and/or competes against the following vehicles:
Is the 2021 Mercedes-Benz GLS 450 reliable?
The 2021 Mercedes-Benz GLS 450 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 GLS 450 owners.
Is the 2021 Mercedes-Benz GLS 450 a good SUV?
Below are the Cars.com consumer ratings for the 2021 Mercedes-Benz GLS 450.
- Comfort 5.0
- Interior 4.9
- Performance 3.8
- Value 3.1
- Exterior 4.9
- Reliability 3.5
62% of drivers recommend this car
- Comfort 5.0
- Interior 4.9
- Performance 3.8
- Value 3.1
- Exterior 4.9
- Reliability 3.5
GLS 450 (1 style)
Style |
---|
GLS 450 4MATIC SUV |
Inventory price |
Starting at $76,000 |
Combined MPG |
21 |
Engine |
362.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
*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 Mercedes-Benz GLS 450
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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.
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