So not complaining, the car and plane are in the grand scheme of things rather superfluous to the experience of being Batman - when you boil it down those are just a means of transportation; if the action is taking place inside a walled in section of Arkham City then I really don't see why you'd even need those.
The way I look at it, tacking driving segments on to a game that already has a zip-line, grapnel, and cape gliding is like giving Spider-Man a car to drive around: Why the hell would you ever use that car when you could be web-slinging your way across the city instead? Unless the core mechanics of a title revolve around driving, it generally just ends up being a chore you perform to get to the next bit where you can actually do the stuff you're playing the game for, the "fun" bits which almost invariably require you to be on foot. And considering how damn entertaining Batman's means of transportation when he's on foot are, I really can't see driving segments being anything but a detraction from the core experience (no matter how much nerd glee you might derive from driving the Batmobile around).
