I wouldn't say chronic rust issues, but any car imported from Jap where there is snow and they drop salt on the roads to clear it up usually leads to some rust on cars on the chassis.

Usually its just surface rust and can be fixed very easily. 8MRs are a rarer breed so I guess people in Jap do try take care of them better, so should be able to find some decent ones without any rust at all.

Also need to be careful with the rust thing, some cars may no pass compliance if you're importing from Jap and they have excessive chassis rust.

ADM 9s don't have that problem at all.