Wikipedia
FUVEST
FUVEST (from Portuguese Fundação Universitária para o Vestibular, "University Foundation for Vestibular") is a Brazilian autonomous institution connected to the University of São Paulo responsible for its "vestibular" examinations. For that reason, USP's vestibular itself is usually called "Fuvest". The Fuvest examinations also apply for candidates willing to study at Santa Casa Medical School.
FUVEST's exam is considered by most as the most competitive vestibular and demanding exam, only rivalled by the vestibular for the Technological Institute of Aeronautics. Every year, an average of 160,000 candidates take their exams, which usually last several days.