Table schema:
CREATE TABLE table_name_15 (winning_driver VARCHAR, winning_team VARCHAR, date VARCHAR)

Question: Who is the winning driver of the race on 2 June with a.z.k./roc-compétition a.z.k./roc-compétition as the winning team?
SQL: SELECT winning_driver FROM table_name_15 WHERE winning_team = "a.z.k./roc-compétition a.z.k./roc-compétition" AND date = "2 june"