sentences:  From 1968 to 1981, the Cosworth DFV V8 engine dominated Formula One racing.During this time, the Manufacturers' Championship was won by Cosworth DFV powered cars every season except 1975, 1976, 1977, and 1979, which were won by 12-cylinder Ferraris.After a very long period of dominance, the Cosworth DFV was eventually outpaced by turbocharged straight-four and V6 engines.