I’m a big fan of Rain X
Since most people have never used a glass treatment before I figured I would show you a video of it in action so you can see why it’s so valuable. As you will see, Rain-X causes the rain to sheet right off the window – even at over 80 miles per hour. In fact, the faster you are going, the more effective it becomes, especially when compared to windshield wipers which can have a very hard time sweeping the rain off at higher speeds.
This video was taken when my NSX got caught in a heavy downpour (I would never otherwise take it out in the rain!), and it’s best if you make the video full screen by clicking on the little icon in the bottom right of the video window that looks like 4 outwardly expanding arrows.
If you’d like to see another demonstration, they’ve got one over on the Rain-X Website. Enjoy.