Original: It was not until the introduction of the new Cosworth unit , badged as a Ford Zetec-R , that Michael Schumacher won the Drivers World Championship with Benetton , in 1994 .
Simplified: A new Cosworth unit , badged as a Ford Zetec-R was built in 1994 . That year , Michael Schumacher won the Drivers World Championship with Benetton .