HI there,
you can feed when out and then have her nap out in the car. my only word of advice is to try and limit these trips where she will be sleeping due to motion when possible. You are definitley not house bound when doing EASY, but it also is not best to take your lo out for every nap because then like you said, she will get used to sleeping with motion.
At that age I would take Taylor out once a nap every other day, because I too would kind of get cabin fever with pnd. There were a couple of times when we were doing serious nap training that we would stay home for 3-4 days at a time and only go out for brief walks, but I think that was only twice.
As she gets older you will find that she can stay awake longer and you will actually be able to go out for a couple of hours and still get back in time for her nap, but until then it is best to limit trips when possible.
HTH!
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