Gas (petrol for non-USians), which has bounced between US$2.50 and $3.00 in the NYC area, is about to hit £1 per liter in the UK, or about US$6.78 per gallon. In Australia it's topped AUD$1.25 per liter, or about US$3.60 per gallon.

Would be interesting to see how taxes play a role in setting the price worldwide.

I wonder how, if at all, the psychological effect of the smaller units (liters) plays a role in people's consumption of gas. Would US drivers drive more or less if gas was priced in liters (66¢/liter seems cheaper than $2.50/gallon, right?).