Used 2020 Mercedes-Benz GLS for Sale near Philadelphia, PA
180 results
CarGurus Analysis:
2020 Mercedes-Benz GLS
With 171 currently listed for sale near Philadelphia, PA and an average price of $36,438.00, 22.2% of 2020 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 Mercedes-Benz GLS 4.83 / 5 stars.
80.7% of 2020 GLS models on CarGurus are accident free.
The 2020 GLS stands out for its spacious three rows of seating, a luxurious interior that combines the comfort of the S-Class, and updated safety features including Car-to-X communication.
CarGurus Analysis: 2020 Mercedes-Benz GLS

Summary
With 171 currently listed for sale near Philadelphia, PA and an average price of $36,438.00, 22.2% of 2020 Mercedes-Benz GLSs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 Mercedes-Benz GLS 4.83 / 5 stars.
80.7% of 2020 GLS models on CarGurus are accident free.
The 2020 GLS stands out for its spacious three rows of seating, a luxurious interior that combines the comfort of the S-Class, and updated safety features including Car-to-X communication.
Why it stands out
The 2020 Mercedes-Benz GLS is a standout in the luxury SUV segment, providing a perfect blend of space, comfort, and advanced technology. As the roomiest vehicle in the Mercedes-Benz lineup, it offers generous three-row seating for up to seven passengers and substantial cargo space. It combines the luxury of the S-Class sedan with additional off-road capability reminiscent of the G-Class. The second-generation GLS features a modern design that aligns with Mercedes-Benz's refined aesthetics and includes tech-forward amenities such as dual 12.3-inch displays, MBUX multimedia infotainment, and numerous standard safety features. The GLS450 is powered by a new 3.0-liter inline-six engine with a mild-hybrid system for enhanced efficiency, making it both powerful and economical. With numerous luxury options and a robust standard features list, the 2020 GLS is tailored for discerning buyers looking for both comfort and capability.
Other model years to consider
- Average price: $47,679.00
- Good/great deal percentage: 29.9%
- User rating: 4.93 / 5
- Total listings: 194
- Average price: $49,375.00
- Good/great deal percentage: 31.0%
- User rating: 5 / 5
- Total listings: 210
- Average price: $74,968.00
- Good/great deal percentage: 24.4%
- User rating: 5 / 5
- Total listings: 201
This analysis is based on CarGurus' proprietary market data from April 7, 2026, CarGurus experts' opinions, and generative AI.
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Bonnie C
Reviewed a 2020 Mercedes-Benz GLS on Sep 21, 2024
Love all the features and it can pull my camper no problem! Beautiful car with kinetic seats that are nice when on a long drive. Love how my phone integrates into the dash screen. It’s classy for business but heavy enough to be outdoorsy as welll. Great value and you can’t go wrong with a Mercedes.
Anonymous
Reviewed a 2020 Mercedes-Benz GLS on Sep 1, 2024
I just purchased a 2020 GLS 450 with 18,000 miles on the clock and I LOVE it. Nothing beats Mercedes when it comes to quality of vehicle and service from the Mercedes team. I was able to get an extended 5 year/ 100,000 mile warranty, which to me was worth the extra money. My last Mercedes was a 2003 E 500. It was such a good car that I waited this long to replace it. That’s what you get when you buy a Mercedes.
Live L
Reviewed a 2020 Mercedes-Benz GLS on Jun 23, 2023
It’s comfortable, luxurious, worth for investment, stylish, overall beautiful vehicle
Huzaifa M
Reviewed a 2020 Mercedes-Benz GLS on Oct 9, 2022
excellent updates, new model GLS 2020 is better than any luxury SUV for many reasons on driving and interior comforts. Tech next level.
2020 Mercedes-Benz GLS Trims
| Trim type | MSRP |
|---|---|
| 450 4MATIC | $75,200 |
| 580 4MATIC | $97,800 |
2020 Mercedes-Benz GLS Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 Mercedes-Benz GLS prices has changed over time.
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