It's a very clever piece of engineering. I didn't quite get it until I saw this webpage with a little visual simulator of how it works, which is really great!

It's a very clever piece of engineering. I didn't quite get it until I saw this webpage with a little visual simulator of how it works, which is really great! http://eahart.com/prius/psd/ http://eahart.com/prius/psd/