Solar-powered system helps in Texas!
We bought one of these when they were first introduced 10 years ago in an infomercial. It doesn't quite bring the temp down inside the car to what they advertise (75), but it definitely keeps the interior from getting so hot here in the Texas summers. I'd say it keeps the temperature inside the car to roughly what the temp is outside (100+), but that's better than 135! Just don't roll up the window too tight or it eventually will break. But again, the last one lasted ten years, so a sturdy product. Overall, we're pleased with it.
Rating: 4 stars