19 Mac Donald's Big MACs was enough to buy 100L Unleaded Fuel in the US in May-June 2005 while it cost roughly 34 Big MACs in the Euro Zone and 57 ! (precisely 3 times more than in the US) for the same 100L fuel in Slovakia. This comparaison ignores exchange rate imperfection since the reconciliation is made only in using local currency for both the Big Mac and the Fuel.
Source: data from The Economist (the Big Mac Index publisher) and from The AA Motoring trust .
(would be interested to collect similarFuel information about China, India and Latin America,,, thanks,,, should this can help to better figure out how much it costs emerging countries to fill in the gap with the richests)