"Solar panel for cars" came across my news reader earlier today. What a great idea I thought. Then I looked at the article on the Wired site. Not such a hot idea. The solar panel is in a disc that attaches on the roof. The whole thing is reminiscent of the mobile two-way satellite arrangements for motor homes. While the solar panel may indeed "provide power for gadgets" slowing down a couple of MPH will save a lot more than the added cost of the aerodynamic drag this monster is sure to generate.