Official word has yet to come down from on high, but it's pretty much a foregone conclusion that the Infiniti G37 will eventually get AWD hardware. Potential buyers are asking dealers, who are in turn asking Infiniti about channeling the VQ's urge through all four wheels. The M45 and G35S will both be gaining AWD in the near future, so it does bode well for the possibility of a G37x. Official statements are vague about any actual developments, other than to say "it's reasonable to expect it may happen." It's also reasonable to assume that Infiniti's watching the competition like BMW and Audi proliferating AWD euro-luxers, and they'd be remiss to neglect offering the same capabilities.
[Source: Inside Line]
Infiniti G37 coupe to get AWD - Autoblog