Over here in japan, gas is already 6 or 7 dollars a gallon. I don`t know the exact price because I don`t own a car, and neither does anyone i know. people here take the train.
America designed its city`s such a way that cars are a necessity, and that turned out to be a really bad idea. So what can you say? No one takes public transportation because it sucks (in every city in the states). So yes, Americans will continue to drive, regardless of the price of gas, because there is no alternative. No significant effort will be made on behalf of the people, the government, or the oil companies, to adapt to this new situation.
All been said before...