And also:
How many cars does your current household have?
Brought to you by someone on Yahoo claiming "most people only keep their cars for 4 or 5 years," which seems...low. I can't remember my parents ever driving a car for less than 10 (record: 18, though it was definitely limping along at that point). I just hit the 7th anniversary of buying mine and I don't put a lot of miles on it, so I expect to keep it for at least another 7, unless I get a job with a significant commute.