Nissan

Should i buy a nissan 350z 2003 with 57k miles for $17000?its in a nice condition but what im worried about is its maintenance, im cool with it being a 2seater and not enough space in the boot but what i wouldnt like is it breaking down on me often. what yall think i should do?my other options are:-04 mini cooper 60k miles for 11 grand-brandnew focus zx3 for $13.5k-06 scion tc with 27k for 14.5kreliablity is the most important thing to me!

First thing: what do you want?you want it fast? reliable? fun to drive? coz for me you cant compare these cars to each other..for me, the z is better.