[ozkai]

I've driven a lot around and through Japan and as Sangetsu says, those little roads can be VERY interesting and really add to your Japan experience.

The highways whilst expensive, one get's the feeling of being "closed in" and "watched" by the cameras.

Aussies highways are free and open to nature. Stop on the side for a leak, and you face the tal eucalypts possibly glimpsing a snake or koala.