you leave your car running with your ac on all day long

 

best way is dont park in the sun....or try car covers

 

theres a little up and down feature on the moonroof. try it sometime.
remember hot air travels up on planet earth.

 

yeaaaa i have a hardtop

 

THAT is a fantastic idea! A dude in a 300zx that parks next to me at work always has his drivers seat tilted forward and I always wondered why - now I know!! I'm definitely doing this from now on.

 

lol didnt see that one coming. crack the windows.

or.. you could install a sheet of solar panels in a remote area on your car and use the current draw to power your fan blower. Audi uses this technology and my brothers A8 actually has solar panels installed onto the sunroof.
The awesome thing is it only works when it is supper sunny outside (ie super hot). This would be an extreme mod and I dunno where you would want to mount it if you dont have a sunroof, but i must say it is one of the best things I have ever experianced.

getting into a leather car on a 95 degree day and sitting on luke warm leather seats as opossed to boiling ones. its a luxury lexus did not afford us.