If you decide on a 2016 - don't make the mistake I did. It turns out that not all 2016s came automatically with Snyc 3. My '2016' was manufactured in Oct. of 2015 (found out after I bought it) and didn't include Sync 3 and it can't be updated to it either (an SE model with a small screen).
Just check and make sure you don't repeat my mistake if Sync 3 is a big deal (it wasn't in my case). I'm a low tech old fart.
But my 2015 made the cutoff for the good transmissions (those after 'on or before' August 15th, 2015). So build dates might be worth checking carefully for both issues.