I think the jump in value from the fast and furious using a GNX will be minor relative to the jump in theft.
Oh, and we are going to have oil for as long as any of us will live and then some. Possibly for forever.
Prices go up because there is no competition, self imposed limited production, and high demand. As competing energies appear like Ethanol, bio-diesels, electric etc... the price of gasoline will stabilize and likely decrease.