Can anyone tell me if the Navigation in the C-Max gives real-time traffic info? If it does, is it a subscription item (Sirius) or would it work without any subscription? Also, does it show what lane of a multi-lane freeway you need to be in for an upcoming interchange or exit? We have a 2013 SE without Nav but a local shop that was recommended by our Ford dealer will put the Ford Nav in for a better price than the dealer. Just want to make sure it will do what we want before ordering it. Other than not having the Nav we're very happy with the car.