In 5-10 years there will be even more vehicles on the road. Not only here, but everywhere else in the world.
The oil companies will be selling more fuel no matter how efficient the cars will be or what hairbrained fuel scheme is the gov't is pushing at the time.
Start pokin' holes in ANWAR and the oil shale! Suck 'em dry!
Drill ANWR like a $10 hooker