Pretty much all G37s 2 doors, 4 doors, X, S, xS all do the same 0-60 with the exception of some variance from car to car even within the same model line (some Xs are faster than otehr Xs etc).

i got exactly 5.5 seconds 0-60 in both an X sedan and an S coupe (using an android app). I suppose that can be off a little and can be improved a little with brake torquing, warming up the tires, weather conditions etc, but for the stock car that's pretty much where its at.

Magazines tests vary from 5.0 for a 7at sedan to 5.7 for the IPL coupe, but who knows how they test.

 

it seems like motorweek always gets good numbers when they test a car..when im in calif and im at sea level my car feels like a breast soon as im back in vegas 2000+ feet totally different car