you can have what you want – even a Hummer! – and be eco-friendly, too

From ScrippsNews:

 ”A traditional hybrid charges its electrical battery from energy created when the gas engine is running. The owner of a plug-in hybrid can plug it into a regular wall socket overnight and start the day with a fully charged battery. That can reduce the amount of gas the Prius uses.
The solar kits push it one step further, giving motorists a little extra energy while they’re sitting in traffic or waiting to pick the kids up from soccer practice.
A solar Prius will use 17 percent to 29 percent less gasoline than a standard Prius, according to a research paper on …read more