Not sure how this has gone unnoticed for so long, but "Where did it went off to?" is grammatically incorrect. "Where did it go off to?", "Where has it gone off to?", and "Where has it went?" are all viable alternatives.
Late, but the Chinese and Japanese should have the same names since the have the same characters. They just read it differently, e.g. 本田 being read as Bentian by the Chinese and Honda by the Japanese.