This is the current-generation GM1/2 Honda City - the successor to the GD-series Fit Aria/City. Despite the "GM" chassis code, it's a mechanical twin to the GE Fits/Jazzes.
Apparently it's not out in Japan yet. The City sedans have been made primarily for the ASEAN/Australian market.
If you compare the GD City/Fit Aria with the GM City you'll note the looks have been tidied up a lot. Gone is the "fat ass" look of the GD Fit Aria/City sedan.