Correct me if i'm wrong but i recall that the 350Z was infact using a V6 Renault engine. I'm not sure if thats the case with the 370 but i can put money on it that if is from Renault his 370 will never likely see a 100K miles!
Renault engines = French Cr*p!
And correctly so, the 370Z should really be compared against the Z4 3.5, not the 1M