Brazil's new generation of cars and trucks adapted to run on alcohol has just hit the two-million mark. Flex-fuel" vehicles, which run on any combination of ethanol and petrol, now make up 77% of the Brazilian market. Brazil has pioneered the use of ethanol derived from sugar-cane as motor fuel. Ethanol-driven cars have been on sale there for 25 years, but they have been enjoying a revival since flex-fuel models first appeared in March 2003. Just 48,200 flex-fuel cars were sold in Brazil in 2003, but the total had reached 1.2 million by the end of last year and had since topped two million, the Brazilian motor manufacturers' association Anfavea said.