Dr. Pepper,
The car window reminds me of the guy that convinced his date that the audio in his car was motion-sensitive. This was right when they came out with steering-wheel controls for volume, and he adjusted the volume with those controls at one point (why they were listening to music in the first place, I don’t know…) and completely amazed her. He showed her that when he waved his hand up or down, the volume would comply with his motions and encouraged her to try it. Of course, she didn’t “get it right” the first couple of tries until he demonstrated the exact way to do it.
Needless to say, they didn’t go out again.