All new vehicles, 2010 or 2011 and up have vapour recovery systems in place.
This was to avoid each gas station from having to install the vapour recovery system in the pumps.
Now, I read this a while back, can't remember where and memory is not what it used to be but I'll assume that the apparatus contained in the filler spout will interfere with fuel stealing somehow.
Notice, however, that you can't smell fuel while gassing up a new vehicle anymore?
I do. Plus mine makes a different sound as it nears full...different from my XL7 for instance, no more sound of fuel sloshing in the pipe, just a sort of...sound that is different.