Presumably because people now are happy to live a long way from where they work, and therefore 'need' a car to get there.
Personally I like living near where I work, and would hate to lose a couple of hours of every day to a commute.
( my other username is a porsche , posting shit pictures so you don't have to, Wed 10 Jun 2009, 19:20, archived)

me too,
apparently people now travel twice as far to work on average than they did only 20 years ago, or something like that. It's competition in the job market that causes this sort of thing.
( Moon Girl Technologies horrendous beanbag, Wed 10 Jun 2009, 19:22, archived)