You know, Miller has a lot* of people teasing Batman about him/his car/whatever being "queer". It's interesting that his version of Batman, which in general is supposed to be very masculine and hetero (in that "rawr, I'm tough, I fight people, eat rats, women obsess over me and I have lots of stubble on my chin!" kind of way), but also seems to involve vague accusations of being gay.
*And by "a lot", I guess I probably only mean from what I can remember, there's Canary here, and then Dick earlier. =P
Is it Miller trying to be funny/self-mocking? Is it that in order for Batman to live up to that masculine ideal he's got to, I don't know, assert that he's not queer? Or is Miller just doing a poor job of taking a dig at the silliness of Batman?