Well maybe because I want to taste something different, my first GL was a GL450, then a GL550 (2013) and a (2015 GL550) I love the power on a GL550 but I feel that I can not justify the power for a family SUV, a GL550 is the big engine, the AMG package witch is nice but I don't think that I will miss it. The GLS350 will be more loaded than my GL550, with the time, I learn my GL is my truly family hauler not my show/fancy/nice vehicle, I enjoy almost every option, for long trips leather seats, multi contour with ventilation, ventilated seats are nice when you drive form Vegas to CA at 117 degrees in summer time!, rear entertainment for the kids and rear sunshades for the sunny days so your young son/daughter will not complaint and you have to stop and put a towel on your rear window (witch look tacky), 3 zone a/c for summer time, highly need it in Central California, no questions, trailer hitch mandatory to haul some toys like boat and trailer, a Pano roof to enjoy trip to the sequoia National park or Grand Canyon specially when mom or your mother and law is on the back seat all stress out with the grandsons, Rear side airbags for extra protection for my passengers and family (it is a video of this option, you will not order yours w/o this option after see the video) lighting package, after have one vehicle with this option you can not look back, soft-close doors to make sure all your kids are locked and secure w/o you saying "your door is open" Harman Kardon surround sys when you want to put volume all the way up when you driving alone and want to sing a song like "forever young" (Alphaville) or maybe Thriller (Michael Jackson) True colors (Cyndy Lauper) Yeah 80's, or anything your daughter teach you about Taylor Swift that you always sing in your mind but you are alone and...who knows. Appearance package because you know this package include illuminated running boards witch I use to and in the long run is cheaper as and option that add it later, same price and you get nicer wheels and tires, I don't want to see my self asking the dealer for a set of running boards... yes... $1200 + $600 installation OMG!! so better pay only $1,200 for factory set up. Driver Assit package, no question, mandatory for me, after own a few GL with this option, and S class I can't hold a car w/o it, It is the only bad thing in my GT S, use only a cruise control make feel on the 80's !! is one of the best options MB ever made, Lockable rear compartment when you decide to go to the range and put a couple guns more secure out of other hands, a parking assit pilot so you wife can not ever complaint that the GL is to big and she can not park, so no excuses to ask for a different car ! Air balance package for those days you want to be in balance with the life lol smell fresh w/o hang a pine three or a strawberry in your back mirror. Wrapped lower dashboard and wood/leather steering wheel to remember you that you are driving a very classy Premium and expensive SUV specially when you see the stitching on your dashboard, come'on ... this option is nice and cost the same as a dinner for two in a fancy restaurant so just skip (dinner) and option will be paid ! magic Vision control.... oh well, this option is the one you will show to your friends before all new 2017 Kias and Toyotas came out and will have it on every single car for free, like the line assist pkg this option cost the same as one pair of jeans true religion

premium package, well, everyone get the premium package! the Active Curve System is a good option for driving, handling and are secure to your love one's, priceless! GL is what it is, need to be focus on family, comfort and everything you need to relax on family trips. uh who...

any other question? please not, my fingers are swollen