sd_matt wrote: I imagine that

[mwtosd]

[quote=sd_matt] I imagine that a cash prize of 5 billion would stir up a lot of competition and development.

Regards”

Mind you all that the letters have only gone out to a few Dems and Green party reps. I figure they would be most likely to answer. Well see. [/quote]

Though it is not close to $5 billion, there is $10 million http://www.progressiveautoxprize.org/

It is for high energy efficient cars.