The team competed in the season as Sauber Mercedes , now officially Mercedes ' factory team . Their new car was the Sauber C13 and the Ilmor engine was re-badged ( given a new name ) as the Mercedes 3.5 V10 . The team went into the 1994 season as Sauber Mercedes , now officially Mercedes ' factory-backed team with a new car in the Sauber C13 and the Ilmor engine rebadged the Mercedes 3.5 V10 .