I just recently had the rear facing seats installed on my Signature. While giving my granddaughter her first ride in them here in San Diego she liked the ride in the seats but was complaining about how hot it was and didn't want to be back there. Running the AC fan at full blast didn't help. I was very surprised to see that there is no venting going back there. There is also very little room between the top of the back seats and the roof of my non pano car for air to get there. I have read about how some people are getting really dark tinting or driving with the back windows cracked or down. I don't really want to do that. I really love the look and concept of the seats. I hope Tesla might consider addressing this issue by figuring out how to get some vents back there. Oh no. I have written a non positive statement about my car. I think this is a first. I just want my grandkids to love "grandpa's fast red car" like I do. Anyone have any luck getting around this?