Solar Powered Ventilator
You know when you come back to your car on a really hot day, you open the door and get blasted by hot stuffy air well this solar powered gadget solves half the problem, at least the hot air won’t be stuffy (and maybe a little cooler too).
The solar vent clips on the top of your window with the solar panel outside (and some air vent I assume) and a fan on the inside. It then sucks the hot stuffy stale air out of the car and replaces it with not quite so hot fresh air from outside. It’s certainly not a replacement for air con but a green and ecologically friendly addition.
Available from Sunshine Solar for under £30.