Boasts 24 Highway MPG and 19 City MPG! This Mercedes-Benz GLS delivers a Intercooled Turbo Gas/Electric I-6 3.0 L/183 engine powering this Automatic transmission. Wireless Phone Connectivity, Window Grid Diversity Antenna, Voice Activated Dual Zone Front And Rear Automatic Air Conditioning.*This Mercedes-Benz GLS Comes Equipped with These Options *Valet Function, Urethane Gear Shifter Material, Trip Computer, Transmission: 9G-TRONIC 9-Speed Automatic, Transmission w/Driver Selectable Mode, Sequential Shift Control w/Steering Wheel Controls and Oil Cooler, Tracker System, Towing Equipment -inc: Trailer Sway Control, Tire Specific Low Tire Pressure Warning, Tailgate/Rear Door Lock Included w/Power Door Locks, Steel Spare Wheel.