Once you get into the mission areas, they are quite corridor-like, IMO. Well made corridors, true, but corridors none the less. You rarely have much of freedom of movement in them, save for the occasional side tour, which usually either dead ends or leads you back to the "main corridor." There is rarely much of a chance to go "off the rails" in those areas. Note that I'm talking about the mission areas, where the main action is, and not the "over world", where you do have much more freedom of movement..
Ah ok, I was talking about the game in general. I agree most of the interiors offer very little in terms of exploration, but I never expected them to anyways. Rage was always billed as a shooter/racing game, and I haven't been disappointed in those aspects.
Haven't played either of them, but when compared to e.g. Crysis 1, you have a much, much more corridor-like game experience (wrt to mission areas) in RAGE.
Sure, but Crysis 1 was almost five years ago, and there hasn't really been a shooter like that since. That's what I meant when I said compared to other "recent" shooters. That's also why I found Crysis 2 to be such a huge disappointment.