Click the link for GameInformer's article
http://www.gameinformer.com/b/features/archive/2014/03/07/the-keys-to-the-batmobile-designing-batman-s-iconic-vehicle.aspx
Summary
-Rocksteady never used the Batmobile in their previous games due to "technical constraints."
-The developers placed a Batmobile in the Arkham City map as an experiment but the results were "disastrous."
-Batman can leap out of the Batmobile while in motion, projecting himself hundreds of feet into the air.
-By simply pressing L1, Batman can call the Batmobile directly to his location, having the ability to jump in the cockpit while the car is driving towards him.
-Due to Batman's vulnerability, the Batmobile is 100% bullet-proof, making it easier to travel around Gotham without getting hurt.
-The Batmobile can smash through lampposts, retaining walls, and fences.
-While in the Batmobile, many thugs will be frightened and run away.
-The Batmobile is equipped with a "defensive taser" to stop carjackers and thieves.
-The Batmobile is installed with a vehicle immobilizer, which fires a nonlethal missile at fleeing cars.
-Unlike Arkham Origins, there will be no fast travel. The Batmobile will be the only form of vehicle transportation.
-The roads and buildings are much larger to accommodate for the Batmobile and its features. There is "a lot more negative space."
In the explosive finale to the Arkham series, Batman faces the ultimate threat against the city he is sworn to protect. The Scarecrow returns to unite an impressive roster of super villains, including Penguin, Two-Face and Harley Quinn, to destroy The Dark Knight forever. Batman: Arkham Knight introduces Rocksteady's uniquely designed version of the Batmobile, which is drivable for the first time in the franchise. The addition of this legendary vehicle, combined with the acclaimed gameplay of the Batman Arkham series, offers gamers the ultimate and complete Batman experience as they tear through the streets and soar across the skyline of the entirety of Gotham City. Be The Batman.