I would love to purchase the car but really need a 4 person car has my other car is a two-seater.

Welcome to the forum Kittychester,

Mazda Japan site has a simulation of how different sized people would look in the rx-8. Below is the thread where the interior room was discussed a little.

http://rx8forum.com/showthread.php?s=&postid=24585#post24585

Brian

Yes they can. I'm 6' and I sat in the back with moderate room in front and I was comfortable. Not limo comfortable, but comfortable.