Chicco 30? or something like that is THE smallest mainstream brand to get. I've been out of the baby car seat game for a couple of years.. but the funny thing is that for people with "small" cars, and even bucket seats as well, that was the only one that could fit in many cases! You'll also have to find a small folding stroller to fit nicely in the trunk.. that I can't comment since I haven't had to try to fit one into the X1 trunk
