Yesterday we established a new record high at (or above) 95 degrees in the Phoenix metropolitan area. I, among others, had initial trepidation about the pano roof and the heat of the Arizona sun. I opted to get the pano roof and today I'm thrilled. I drove to a spring training game yesterday, 1pm scheduled start time. The car was parked outside, uncovered for several hours. The mobile app told me it reached 125 degrees inside during the game. Once the game was over, I started up the AC unit and vented the roof from the mobile app. About 2 minutes later, I was seated in the car that was already cooler than the outside ambient. Given the post-game traffic, I didn't move an inch for a few minutes. The AC just kept cooling and I found I was fully comfortable with the thermostat set at 78 for the full ride home. I can say with complete confidence that fans of black leather and the pano roof can order knowing they won't fry. The Tesla was easily the fastest-cooling car I've ever ridden or owned. I have no doubt that the car will be quite comfortable as the temps rise to 110 and above this summer.