If Batman ever tried getting a driver's licence... well, according to this video by Animation Domination High-Def, he probably shouldn't, cause he'd be crap at taking the test. But it's OK. His failed attempts would make for hilarious stories.
And, like he says, Batman can always fly! So screw having a licence, really.
BATMAN: DRIVER'S TEST | ANIMATION DOMINATION HIGH-DEF [Animation Dimination High-Def]