Originally Posted by KingJoseph

Just to further assuage your concerns... I had a 350Z roadster and now have a 370Z Nismo and the transmissions on both made a "ker-thunk" sounds followed by a short rattle when I fully depressed the clutch pedal. Since both cars have made that exact same sound, I presume it's normal.

My hatch has rattled a little since day one... now something on my dash is vibrating. This kinda stuff sucks, but honestly I've owned 2 Nissan Z cars, a Honda Accord, a Lexus ES (gussied up Camry), an old Subaru, an old Saab, and a Toyota MR2 and all of them developed rattles in a very short period of time. It's unavoidable unless you want to rip the car apart and add 100 lbs of Dynamat. That **** is heavy; I don't think that weight estimate is an exaggeration.