3rd Row Seat, DVD, Heated Leather Seats, NAV, Sunroof, Power Liftgate, Full-Time 4MATIC® All-Wheel, Turbo, DRIVER ASSISTANCE PACKAGE, HEATED REAR SEATS, BANG & OLUFSEN SOUND SYSTEM, NIGHT PACKAGE, HEATED STEERING WHEEL. KEY FEATURES INCLUDE Leather Seats, Third Row Seat, Navigation, Full-Time 4MATIC® All-Wheel, Power Liftgate, Rear Air, Heated Driver Seat, Cooled Driver Seat Rear Spoiler, MP3 Player, Privacy Glass, Keyless Entry. Mercedes-Benz GLS 550 with Polar White exterior and Crystal Grey/Black interior features a 8 Cylinder Engine with 449 HP at 5250 RPM*. OPTION PACKAGES BANG & OLUFSEN SOUND SYSTEM Tirefit Mobility Kit, ACCESSORY REAR SEAT ENTERTAINMENT SYSTEM, DRIVER ASSISTANCE PACKAGE DISTRONIC PLUS® w/PRESAFE® Brake, DISTRONIC PLUS® w/Steering Assist, BAS PLUS w/Cross-Traffic Assist, Speed Limit Assist, PRESAFE® PLUS, Driver Assist Package, Active Blind Spot Assist, Active Lane Keeping Assist, PANORAMA SUNROOF, HEATED REAR SEATS, NIGHT PACKAGE Wheels: 21 AMG® Twin 5-Spoke Bicolor, HEATED STEERING WHEEL. EXPERTS REPORT Edmunds.com explains Of course, the GLSs calling card is its roomy adult-size accommodations in all three rows. Its one of the more accommodating third-row seats youll find in any crossover.. EXCELLENT VALUE Was $26,125. This GLS 550 is priced $4,900 below J.D. Power Retail. Pricing analysis performed on 5/6/2026. Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.