As a long time lover of the RX7 shape, I have to say it's one of the best looking factory standard cars Japan has ever made. Also, the interior - very nice. Off the showroom floor, it's hard to beat in looks and performance. However, the build quality is below crap, and they spend most of their time in the shop getting fixed only to break on the way home.
The S15 factory standard is not as pretty. However, dropped on a nice set of wheels - the playing field is pretty even. Regardless of the fact I own one, I actually prefer the shape of the S15 over the Rx7 (with my body kit fitted). Also, build quality, reliability etc is far superior.
In summary - there's no other car I'd rather have. R34 GTR included! I prefer the interior and exterior appearance of the S15 over the R34.
S15 - it's only down hill from here guys...
ps - finally got some pics of the S15 - how do I put them on the site? Do I need to use photobucket or something? Can't do a cut and paste? Also, if anyone knows where I can download photoshop or some programme to blank out my number plate, let me know.