Try Road & Track.com for your times. You might also want to check your spelling of Foot-"Fot" and knees-"kneese" unless you wanted them spelled that way for effect.

 

You asked about the 2005 coupe. To my knowledge, no one has tested it yet. Figure on about the same times as the 2003/2004's, however, as they have more power but weigh more also. So around 5.5 seconds for the manual, and 6.0 for the automatic.

 

According to "HowStuffWorks.com", they talked about horsepower and all that jazz and provided the following detail (I took out the Mitsu 3000GT example because it closely resembles the Power-to-Weight ratio of the 05 G35 Coupe MT:

From "HowStuffWorks.com"
Mitsubishi 3000GT bi-turbo
320HP
3,740lbs
0.086 (Power:Weight)
5.8sec (0-60mph)

My simple calculation and guesstimate of 0-60
2005 Infiniti G35 Coupe
298HP
3,512lbs
0.085 (Power:Weight)
5.9sec (0-60mph)

So yeah, that's my take on it, but I'm sure there are plenty of variations. I mean, who really knows how much power the engine really makes or how much the car exactly weighs, there are too many variables. IMO, the G is fast enough to have an entertaining ride.

 

I could have sworn I've seen 5.1 somewhere.