I had to throw the Air Con thing in.....
On two separate occasions I've managed to spend two glorious weeks in the UK at the absolute hottest time of the year during a summer heat wave.....you notice these things....
Didn't have it in the car either.....
If ever traveling to Italy during the hot season(s), make certain that when you book hotel reservations you specifically request a room that has airconditioning. Of course it's a bit more expensive, but after a long, hot day of sightseeing, having at least a comfortably cool room in which to recover is a real blessing!