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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
2020 Mercedes-Benz GLS 450
for sale
near
Chicago, IL
- 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
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Good customer service, very polite, nice vehicle.
Good customer service, very polite, nice vehicle. A very clean establishment. I would recommend this company. I hope nothing does not change my mind.
Great Vehicle
I absolutely love the feel and performance of this suv. The electronics are state of the art. Excellent road performance in rain, snow or wind. My only complaint is the running board- it needs to be at least 1 inch wider. Actually dangerous in snow and ice.






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Great experience easy and nice to deal with Jason got me
Great experience easy and nice to deal with Jason got me some great financing with a credit union
Love it so far
Special. A delight to drive. Love the way it handles. Extremely responsive, both acceleration and steering. Cabin is very quiet and at night almost too relaxing.






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Marco Torrens was excellent and patient the entire time
Marco Torrens was excellent and patient the entire time with the process and very polite with every question we asked, the driving test was great and even pointed directions back to the dealership easily
very roomy and functional
I have test drive the range rover the X7 and I find this is the best for me , it has the room and comfort plus all the safety plenty of power too with a good mileage for a car this size .






Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
Features
Reviews
Excellent communication.
Excellent communication. Prices very good. Transaction quick and accurate. Excellent customer service. Polite and courteous. Great selection of vehicles, especially Teslas.
Large yet stylish enough to carpool the Grands
We just bought this car. Comfortable, roomy, easy to drive. Not quite a luxury ride that the Lexus GL has but performs well. Takes a second to get comfortable with the bells and whistles. Beautiful car, 2 2 2 seating. Easy for kids to get in without climbing over or moving a seat. We bought this SUV for me to drive around town as well as to school carpool my grandchildren. So far...very pleased. This is my third Mercedes. My only complaint with Mercedes is the fuel tank on the passenger side. I feel a little more vulnerable being on the opposite side of the driver side when pumping fuel. I assume it has been this way for years. I guess safety at the gas station was not as big of a concern as it is today. If considering a luxury SUV test drive. I think you will be pleased/






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Mike was a pleasure to work with in the purchase of our
Mike was a pleasure to work with in the purchase of our new MDX. He answered all our questions and pointed out features and benefits of the car
Must silence car I ever own!
The Mercedes GLS is my second Mercedes and like always very satisfactory process to buy at the dealer. Great vehicle! Outstanding engine and transmission! Very confortable for the entire family 😂






Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
Features






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
My experience is good but I’m looking for car is hai
My experience is good but I’m looking for car is hai price But staff is very good and great response 👍






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Money Carlos was a wonderful sales guy who helped us out
Money Carlos was a wonderful sales guy who helped us out greatly! We will definitely be back!






Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
Features
Reviews
Excellent
Tony's customer service is excellent. He is very knowledgeable and informative. We highly recommend anyone in the market and will be referring our friends and family to him. We could not have asked for a better experience.






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
I would like to give a big shout out to Oscar Rivera that
I would like to give a big shout out to Oscar Rivera that works in the service department and he was my service guy. He was so polite and so attentive to my needs. I definitely would recommend him to all my friends and family thank you so much. Ask her Rivera for the beautiful and kind person that you are






Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
Features
Reviews
⭐⭐⭐☆☆ (3/5 Stars) I had a great initial experience with
⭐⭐⭐☆☆ (3/5 Stars) I had a great initial experience with Highline Autos. The transaction was fast, smooth, and professionally handled. The team—especially Zuhair, the owner, and the young Ghalib—was responsive and knowledgeable, making the buying process straightforward and low-stress. Their professionalism and business reliability stood out during the deal. However, about a week later, I was disappointed to discover that the tires on the car I purchased were leaking. Upon inspection, it turned out that plugs had been used as a temporary fix rather than properly addressing the issue. This was unexpected and concerning, as I had hoped for greater transparency regarding the vehicle's condition. While I appreciated the efficiency and service during the sale, I hope the team takes this feedback seriously and ensures that future vehicles are fully inspected and represented. I’d encourage potential buyers to have a thorough inspection before finalizing a purchase.
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Mercedes-Benz GLS 450 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 Mercedes-Benz GLS 450 | $80,000 | 5 Great deals |
2024 Mercedes-Benz GLS 450 | $67,759 | 9 Good deals |
2022 Mercedes-Benz GLS 450 | $47,295 | 4 Good deals |
About the 2020 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 2020 Mercedes-Benz GLS 450 cost?
The 2020 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 2020 GLS 450 is $38,674, with pricing starting at $26,995.
What is the MPG of the 2020 Mercedes-Benz GLS 450?
The 2020 Mercedes-Benz GLS 450 offers up to 19 MPG in city driving and 23 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 2020 Mercedes-Benz GLS 450?
The 2020 Mercedes-Benz GLS 450 compares to and/or competes against the following vehicles:
Is the 2020 Mercedes-Benz GLS 450 reliable?
The 2020 Mercedes-Benz GLS 450 has an average reliability rating of 4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 GLS 450 owners.
Is the 2020 Mercedes-Benz GLS 450 a good SUV?
Below are the Cars.com consumer ratings for the 2020 Mercedes-Benz GLS 450.
- Comfort 4.7
- Interior 4.6
- Performance 4.5
- Value 4.1
- Exterior 4.7
- Reliability 4.0
71% of drivers recommend this car
- Comfort 4.7
- Interior 4.6
- Performance 4.5
- Value 4.1
- Exterior 4.7
- Reliability 4.0
GLS 450 (1 style)
Style |
---|
GLS 450 4MATIC SUV |
Inventory price |
Starting at $75,950 |
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 2020 Mercedes-Benz GLS 450
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