Hybridcars has posted a three-page letter sent to Bill Ford by Prof. Andrew Frank of UC Davis, the inventor of the plug-in hybrid, and Felix Kramer, founder of the non-profit California Cars Initiative, beseeching the man and his company to endorse the group's research and development of a plug-in Ford Escape Hybrid. You can read the letter here.
Again, Ford could score major PR points by being the first to mass market a plug-in hybrid. An Escape that could achieve 100+ mpg would certainly be front page news.
Many are speculating that liability concerns are what's keeping automakers at bay. Safety issues surrounding more batteries that are larger being stored onboard, the potential for sparks near gasoline vapor and even drivers pulling away with the car plugged in could be of particular concern.