From my experience im gonna give you an advice direct to the veins but first im gonna ask you if is really a necessity for you to get a 370z? You really must have it? You won't keep going in life without it (for now)?
It is obvious that your parents wont buy you one my best advice is that you save, the most you can so you could buy one.
Lol you are 16 and i know that you are screaming from the inside out to own one but sadly you cant have one BUT HEY!! you don't need to rush. Meantime better save to get something good (Don't buy used one to keep away the trouble)
Don't get me wrong but it seems you wanna impress people around?
Most of the people here were 16 included myself and at that time we only could stare at other people which suck and even we didn't had a car...
On 2008 here in my country Nissan brought the 350Z (4) base model for the motorshow and it was pricey (55 K) When i saw it i felt in love instatly but i could not afford it at all. Time passed already and after getting a used 350z now i bought a new 370z+mods saving $$
You could buy a 350z for 10k but in my case i would because that is almost 1/3 of a new 370z base model
Again, if i were you i would save $$ the most i could to get the car i really want, beside you are 16. 3-4years of savings pass fast.
lol don't hate for been honest