2007 mustang gt vs 2007 350z vs 2007 mazda rx8

I am debating on getting a stang gt, Z, or rx8. It will be an everyday car and I'm not going to put a lot of money into it. Maybe a couple bolt ons in the near future but nothing performance wise probably. I like the tuner look better than muscle but I like muscle sounds better. I like fast turning but as far as street turns I don't know if any of them are better than the other. And obviously something fast. What are the ups and downs of each car?  

Ok Look
First decide whether a 2 seater or 4 seater,
if its a daily driver and you drive people around constantly, get a 4 seater,
if not and its for pleasure then 2 seater
in terms of 2 seater, s2000 or the 350z
both are great cars in terms of performance and reliability
im only 17 but i constantly drive people around so i jsut got an 04 6mt rx8
coming from an auto v6 tiburon i love the rx8
it's a great daily driver under 5000 rpm but once u put it over 6500 it gets a nice purrr
plus i can get people in the back very easily and its way more comfortable then any other 2 dr.
please dont get the mustang, they are super shitty cars and assuming you get the v8( v6 is pointless) sure itll sound nice but in terms of reliability man i wudnt trust ford aka fix or repair daily,
i have to drive my car in the snow and i know it wont be pretty here in chicago but my friends dad is an awesome driver and has a 08 mustang gt and he fishtails even with bags or salt in the trunk, it is a 5mt too
i mean its up to you and you should test drive the cars also but honestly if you can spend around 20K idk if they have them where you live but get an 04-05 m3
cant go wrong with those bad boys  

from what you said it sounds that you would like you need the z. you can put an aftermarket exhaust and has the tuner look, an good cornering, compared to the mustangs cornering, which is *** get the z.