Ehh I finished the game and while I don't love the Batmobile I never really hated it either. The big tank battles like the ones that happened when you defused a mine were pretty good, imho, just the
ones and the boss battles were quite annoying.
It was growing on me and I was starting to like it, but then that section towards the end when it was hop In the batmobile, drive down a tunnel and make some annoying loops (I know it's not hard, but I fucking hated it like no other, it was completely unnecessary. Seriously I hate that shit like no other), hop outta the tank and flip a switch,met back in the batmobile, fight 40 tanks, fight some Cobras and you know the rest. It's just mind boggling how the developers thought that was fun and well designed.
Another thing for me, is that I despise racing games because I can't play them very well. I just plain suck at doing sharp turns at fast speed, because I always always always end up facing the wrong direction and it costs me the race. I know people will tell me you gotta learn, but my instincts to not play that way are hard wired. Hence I don't play racing games, because I know they will frustrate me too much. I didn't want nor did I ask for that in my Batman game. Those things are minimal, but they are present.
The Arkham games are about kicking ass and stalking as Batman, not being a racing simulator.
Having said that I am not advocating that they should have removed the batmobile. I think they should have made it such that it's use was very straight forward and made them very easy such that they could be seen as a pleasant diversion.
It's late and have no clue if this makes any fucking sense.