Japan is bad, but not as bad as the Scandinavian countries it seems to me.
Sweden seems to be on par with Denmark, but here in Japan they check all basic functions as well as the pollution test.
I have to lean my carbs to the point of total UNdriveability
to pass their draconian limits.
Rust does not seem to be an issue as long as it's not structural or a danger to pedestrians.
Japanese people tend not to take their own cars to be tested though, instead letting a mechanic prepare the car for the test and also taking it there.
A fantastic opportunity for profit for the mechanics to the tune of $1000+ for an average 'chaken' (safety check) ...
the check itself actually only costs about $30.- /bcforum/images/%%GRAEMLIN_URL%%/smile.gif