For the ones pontificating their "right" to cruise at 75mph+ and/or in a land barge, read what the
Saudis say about their ability to pump your gas.
Go ahead call me smug, wrongheaded, crazy....then check back in five years about how right you were. Of course, I don't believe every article I read, but several times I've read the Saudis really don't know how much oil they have or how long it will last. A lot more certain is the rapidly increasing oil consumption by China and India.
I'll be more than happy to be proven overly pessistimic about the World's reserves of oil, but the Saudis probably have a good idea of what their capacity is....