some suspension/width confusion over past and current models

So i have been shopping around for my first ATV and the Grizzly seems to be the best overall but some talk of body roll issues and some minor endo issues.

So i know they changed the suspension to be 2" wider for the 2014/15 models, but when i look at the 2013’s it says that it is the same width as the 2014/15 models, a 46.5" width. How is this so?

and the new 2016 is 48.4" wide but i cant find any mention of wider suspension, merely the words "improved" suspension.

any help would be appreciated.