Some employers can't even imagine that their employees have the wit to make it to work on time without a car, so it's probably best to not even let this become an issue.
Agreed. Unless you're interviewing downtown or in N.Y. or Chicago downtown it's still thought of as "you're poor, DUI, or ecentric" to bike, walk, skateboard, or kitesurf to work. I'm sure people just expect you have a car, and I wouldn't bring up my "bike mostly" lifestyle at an interview.