Of course, in England petrol remains far more expensive. But what matters for the impact on the culture is the differential. Petrol is still, when you calculate it all in terms of dollars to pound and gallons to litres, about twice as expensive in the UK as in the USA. But when we arrived the difference was far greater than that. Petrol in the UK was at least four times as expensive back in the late 1990s, if not rather more.