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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
Calumet Park, 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
I was struggling with paying my vehicle payments too
I was struggling with paying my vehicle payments too high. Money Carlos together with Mario really helped me get through this. Getting me a great deal
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
Nice man pick up from train station i love my new car
Nice man pick up from train station i love my new car A++ fixed my AC too and I left happy
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
Wasn’t pushy, very professional from beginning to end.
Wasn’t pushy, very professional from beginning to end. Will definitely reach out to them again in future.
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 4MATIC
Vehicle information
Features
Reviews
I wanted to get a car fairly quickly and knew what I was
I wanted to get a car fairly quickly and knew what I was willing to spend. My salesperson Paolo was extremely helpful and found me my car in the color I wanted in less than a week. To my surprise, the package I purchased even came with several bonus accessories for protecting the interior. Paolo took his time with me and explained every feature in the car (even after closing), which was amazing since the manual looks like an encyclopedia. The dealership followed up later with a Zoom call to answer any additional questions I still had and they’re sending me a free gift! Overall, I would absolutely shop here again and recommend this dealership to my friends!
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
Agent Keith greeted me when I pulled in for service.
Agent Keith greeted me when I pulled in for service. He asked me to step inside and would be there in a minute after checking my VIN and mileage. He helped me locate my rewards number on my phone and went over the prices for my oil change, tire rotation and new battery. Later when I was in the waiting area, Keith informed me that 30,000 mile maintenance needed attention. I agreed to the two services recommended and was still out of the dealership in around two and a half hours. Keith processed my 10% discount and informed me of a $20 rebate for the new battery. He explained the process for requesting the rebate online. I highly recommend Garber Chevy for their sales and service. I have bought three cars here and am willing to drive the seven miles to Garber even though there are Chevy dealers in Lansing, Ill where I live that I no longer deal with if possible. The other dealership will always ask me three to four times if I would like to trade my car in or do I want to look at new car models. I don't like that, if I want to look at a car or want a trade-in, I'll ask. Go see Garber and you will be surprised!
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
Reviews
High Line Auto Sales is hands down the best used vehicle
High Line Auto Sales is hands down the best used vehicle dealership in the area. Their expertise and care really reflect when it comes to the vehicle they sell. I never hesitate to recommend them to an acquaintance, friend, or family member because I know they only sell amazing quality vehicles.






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
From the moments I got in the dealership until I left I
From the moments I got in the dealership until I left I was treated very nice and very welcomed. I looked at Lexus RX and end up buying it because I felt comfortable and car is clean with good competitive price. Very recommend






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
I am writing to express my sincere appreciation for the
I am writing to express my sincere appreciation for the outstanding service I received during my recent visit to your dealership. As a loyal customer who has now purchased three cars from your establishment, I felt compelled to share my positive experience with you. The team at Ultima motors truly embodies the meaning of exceptional customer service. From the moment I walked in, I was greeted by amazing staff who made the entire car buying process incredibly smooth and hassle-free. Not only did they streamline the process, but they also managed to secure a fantastic deal for me. I must particularly thank Chris from the Sales department for his professionalism and helpful demeanor throughout the transaction. His dedication to ensuring customer satisfaction is truly commendable, and I will not hesitate to recommend him to family and friends who are in the market for a new car. Furthermore, I was impressed by the overall organization and efficiency of the management . It is evident that the entire team is committed to delivering prompt and high-quality service to every customer. The quick and professional service I received further added to the overall positive experience, solidifying my decision to continue purchasing cars from your dealership in the future.






Used
2020 Mercedes-Benz GLS 450 Base 4MATIC
Vehicle information
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Reviews
Marc and Grason did an excellent job and were very
Marc and Grason did an excellent job and were very courteous. Also Owen was exceptionally courteous and helpful.






Used
2020 Mercedes-Benz GLS 450 4MATIC
Vehicle information
Features
Reviews
Made me feel like family as soon as I walked in very
Made me feel like family as soon as I walked in very helpful and accommodating to my needs didn?t feel rushed at all great staff and location overall.
There are 20 matching cars close to your year range.






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Used
2022 Mercedes-Benz GLS 450 4MATIC
Vehicle information
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Used
2021 Mercedes-Benz GLS 450 4MATIC
Vehicle information
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Used
2018 Mercedes-Benz GLS 450 Base 4MATIC
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Mercedes-Benz GLS 450 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 Mercedes-Benz GLS 450 | $76,991 | 2 Good deals |
2024 Mercedes-Benz GLS 450 | $65,423 | 6 Good deals |
2022 Mercedes-Benz GLS 450 | $45,500 | 9 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 $37,745, with pricing starting at $27,500.
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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