I have a hard top for my 89. The Jeep is in a none running state to put it mildly. But it came with the hard top full doors half doors, and lots of extra parts. I really would like to run the hard top and full doors year around. My question, how hot is it in the summer with the hard top on? It looks to me like there would be little to no air flow through the Jeep as no opening windows behind the front seats. The rear hatch has no frame, the hinges and all hardware is mounted through the glass, so it looks like driving with the rear hatch up would be a real bad idea. So just how hot is it in a Wrangler with hard top in the summer?