Just saw a news story, about the new innovation in gas caps for cars, not having one.......

Ford is going to introduce a "Capless" system on the new Lincoln MKS, and apparently already have it on their Ford GT. I need to do more research on this one, as I'm not sure about the functionality of the system. My Chrysler, needs to keep a pre-set pressure in the tank, or lights start going off. If I leave the cap off, it may cause problems. So, what happens if a seal in this "Capless System" fails, and the pressure changes?
Just wanted to get other views, to see if others have heard about this....
