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Used
2021 Mercedes-Benz GLS 450
for sale
near
East Riverdale, 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.
Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Pascuale and Sang were nothing short of AMAZING and
Pascuale and Sang were nothing short of AMAZING and professional! Pascuale met me at the door upon my first visit at the dealership. His kind and honest spirit allowed me to feel comfortable enough to know, this is the dealership I wanted to use. Pascuale and Sang properly prepared me prior to my arrival to retrieve my custom 2025 GLE350 to ensure zero hiccups. I did not feel pressured at all - just relaxed. My vehicle turned out EXACTLY as ordered! Sang walked me through the basics of how to operate my vehicle and I was also pleasantly surprised with a follow up call the next day from Sang.
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
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Reviews
A customer for life
My vehicle was delivered right to my doorstep. The Sales Manager accommodated all of my requests, and allowed me to offer a pleasant surprise for my wife on her birthday. Euro Motorcars Germantown is first class all the way. Thank you so much everyone!
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
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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!!
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
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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
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 4MATIC
Vehicle information
Features
Reviews
AWESOME DEALERSHIP AND STAFF❣️ GREAT SELECTIONS 2 CHOOSE
AWESOME DEALERSHIP AND STAFF❣️ GREAT SELECTIONS 2 CHOOSE FROM🚘🚙 THANK U 4 MY NEW SUV🚙🤍💃🏽🥳🎉
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
I post a review on June 7 2025 and today July 26, 2025 we
I post a review on June 7 2025 and today July 26, 2025 we had meeting with the manager James and he settled the price issue we had with the purchase of Honda civic 2016. Thank you James
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2023 Mercedes-Benz GLS 450 4MATIC
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Mercedes-Benz Certified
2022 Mercedes-Benz GLS 450 4MATIC
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Mercedes-Benz GLS 450 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 Mercedes-Benz GLS 450 | $99,913 | |
| 2025 Mercedes-Benz GLS 450 | $90,549 | 9 Good deals |
| 2024 Mercedes-Benz GLS 450 | $76,286 | 9 Good deals |
| 2022 Mercedes-Benz GLS 450 | $55,364 | 11 Good 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 $41,558, with pricing starting at $29,988.
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.
