I'd love to see some of the billionaire's in the electronics/software industry sponsor an annual zero emissions race with a healthy prize. I don't know if this is still a true statement today or not, but at one time NASCAR was the fastest growing sport in America. I'm sure you could market a zero emissions race to these folks, and get back some of the money invested in the event.
You may say, "but Ryan, that would be a very boring race to watch." Perhaps the first year or so, but maybe not. Ian Wright's X1 prototype recently beat a Ferrari 360 Spider and a Porsche Carrera GT in drag races, and has the 2nd fastest 0-to-60 acceleration among production autos in the world. Read more here.
Competition is what will bring about change the fastest. So why doesn't Bill Gates, Paul Allen, or somebody sponsor an annual race? I'm sure they could use the tax write-off!