My 8 Becomes a little bit hotter inside
 

Does anyone have any solution , i'm having trouble with my rx8 .. i noticed it in this summer , when i drive a hot air comes from elsewhere .. what can be the problem of this ? ( maybe Condition system ? )

It's blowing hot air when your air conditioning is on? If so you may need a refrigerant recharge.

Need more info as your post is a bit cryptic.

Nooooo, the car is trying to make you a "hottie".
Seriously though, the hot air is normal. You should also check the cup holders, they get real hot, the boot floor as well. The heat appears to be coming from the exhaust underneath and catalytic converter.

Do you park your car outside?

Could just be the sun, every car is hotter inside of the car in the summer.

The car runs hot. You're feet will get hot. Your iced coffee will melt in the cup holders. Just drive with the windows down. I do.