I am not sure but I think the shifter is the only difference. But I could be wrong. Far at the pre 2017 shifter, everything I read and heard about them has not been true or an issue on my 2015 UXV 450i. I bought used, barely broken in with 148 hours. I have not experienced any shifter issues to date. The kymco UXV are a bargain of deal, with that said I got my "used" but basically new, for 6500, with my accessories I wanted added in, (Off Road Body armor Accessories, doors, bumpers tree kickers) wireless remote for the already in place warn winch on the machine, I was out the door for 8300. You cant beat them. They're a awesome for machine and the thing just flat out goes. The motor has been around forever so don't be scared of it. I also adjusted my shocks in the front and rear just about all the way up and put 26" maxxis bighorn 2.0 tires on and the ground clearance is now what it should be from the factory IMO. I say all that to say that if you can score a better deal on the 2016 model I'd certainly go that route. Then add whatever accessories you want. There are more and more accessories coming available for them. Oh I also have the factory top. Its alright, but I keep hoping someone will start making some more options for roofs for the thing. Check out Kurt, at Off Road Body Armor Accessories. Great people with a great and well built accessories. There's pics of mine floating around here on the forum some where.