Well in NZ the gas price is about USD$3.61 per gallon - and we're calling that cheap!
Last year it got up to about USD$4.45.
That was painful.
(Those are just ball park figures cos I had to convert litres to gallons then NZ$ to US$.)
About half of that is tax - and only a teensy bit of that tax goes on the roads.
But we don't have to have health insurance here - so I really shouldn't complain.