Our spy photographers say this is the G37 version of the sedan, powered by an updated Nissan VQ37 V6 engine. However, the automaker has also trademarked the G30t name, denoting a turbo motor, as well as the G22d,w which will use a 2.2-liter four-cylinder turbodiesel borrowed from Mercedes.
Japan might also continue with the tried and tested 2.5-liter VQ25 V6 it introduced in 2011.
For the US, a 3.5-liter hybrid system based on the M35h will be prepared. Either way, we’ll be able to see this car in fully next year, as Infiniti has officially announced the new G sedan will be shown at the Geneva Motor Show in March 2013.