At Pax Prime were shown how easy it is to drive in Final Fantasy XV. You can drive as long as their are roads and can get out anywhere at any time. As well as point out that the car will represent the bound Noctis shares with his father. On the video they showed us you can drive to small light house/ port called Caem. Hajime and the others were careful about walking around the light house as to avoid spoilers. Meaning it might be a story related content or going inside might trigger events they were not ready to show. You can see a few new images Caem, driving and Luna.
Article:http://gematsu.com/2015/08/final-fantasy-xv-caem-driving-screenshots-artwork
As always thank you for reading.