There is a possibility that Infiniti will produce an
all-wheel drive, twin-turbocharged version of the G37 in 2010 that will produce
500 horsepower. Such a car sounds a lot like the Nissan GT-R, the first production Skyline ever to be sold in the U.S. Even though this news come from a forum post written by a guy who talked to some dealer, and its validity can in no way be confirmed at this time, we have to admit that it makes sense to us.
We're well aware that Infiniti dealers were not happy when one Carlos Ghosn announced the GT-R would be badged a Nissan, so an ultra high-performance version of the G37 is one relatively easy way to appease those dealers. We also presume that the G37 Coupe and GT-R will share a good deal of hardware, which makes us wonder if the GT-R's powerplant will turn out to be a twin-turbo version of the G37's 3.7L VQ V6, rather than the 3.5L version. That would certainly explain the blistering lap times a prototype was turning at Laguna Seca last month.
Source:
Enter the rumormill: 500HP Infiniti G37 twin-turbo on tap for 2010 - Autoblog