Maybe it's time to produce cars that don't need 8l per 100km/60miles any more or start driving in a more responsible way.
Everybody is complaining about the oil price but did you see any guy buying a car with less power/fuel consumption or change his driving style to a more economic way?
Here in Germany people are still more concerned about having a lot of hp than fuel efficiency and we are still driving with the pedal to the floor (there is no speed limit on some parts of the German Highways).
So obviously petrol is still not expensive enough to be a real factor in private life (It sure looks differently for companies that need petrol).