I haven't read all the replies yet, but thought I'd add mine!
I have five, expecting six. We were driving an eight passenger venture, but traded for a ford explorer, also eight passenger. Aside from the trunk space, I love the newer one much better! We have two car seats and two high back boosters right now, and room for the rfing infant when I need it. My friend has same size family (five going on six), except her two oldest are a few years older, so they are small adult size. She drives a suburban. Another friend, five going on six kids, all under 11 and the youngest being twins who are still rfing drives a dodge caravan, a newer one, and has enough room. She is sad to see it go, but needs a bigger one with another coming. She is getting a ford f150 12 passenger.
That's the cars! My house is the smallest of the three of us, I live in a 3 bedroom, 1 bathroom bungalow. It is in now way large, but it works for us! Friend #1 lives in a four bedroom farm house, one bathroom as well, not all of her bedrooms are being used! Friend #2 lives in a 3 bedroom 2 bathroom house. We are all comfortable in our homes, they work well for us!!
Just for fun. I figure I will also add in that another friend of mine has ten kids, nine living at home still. She lives in a four bedroom house, two bathrooms. She doesn't drive with all kids at once, so they have more then one vehicle, but none that fits everyone. She was driving a 12 passenger express until a few years ago though.
I also want to add that NONE of us are exceptionally rich, we are all pretty much middle class. We are all stay at home moms, so no we don't have day care.
As far as my time being devided, my kids all get my time, even if it's not a set amount of one on one per day. They also all have each other too, and dad. I do give them all time, and none of them ever feel a lack of it. We may not have the money to do everything with the kids, like hockey or piano for all of them, but they each get to choose one activity at a time during the school year, and all do swimming in the summer. We get great group rates!! We don't go out for dinner often as a family, but we do go out with one or two kids here and there, and then they are also getting more along time.
Now, none of us had the number we did due to gd, we wanting this number. Some of us have hope for either gender, but nothing more then hoping. No disappointment with the opposite gender. I once felt sad and wanted another girl, but turned it into refusing to have more until I realized it didn't matter what I had. That was a few kids ago, I got over my gd! I love my big family, but my job is to be a mom, that's it!! I wouldn't recommend trying to have this family and a full time job, but I also know people who've made it work!
Hope that helps!