Mercedes-Benz of Cincinnati is proud to offer this Used 2026 Mercedes-Benz GLS GLS 450 for sale in Cincinnati, OH. This GLS is equipped with the 6 cylinder, 3.0 liter engine, giving you an amazing 19MPG in the city and 24MPG on the highway. Its advanced 9-Speed Automatic transmission produces incredibly smooth acceleration and gearshifts. With its stunning Obsidian Black Metallic exterior color, this SUV is begging for a test drive! Come see Mercedes-Benz of Cincinnati at 8727 Montgomery Rd, Cincinnati, OH.