Context: CREATE TABLE table_24865763_2 (gt2_winning_team VARCHAR, lmp1_winning_team VARCHAR)
Question: Who was the GT2 Winning Team if Greg Mansell Leo Mansell was the LMP1 Winning Team?
Answer: SELECT gt2_winning_team FROM table_24865763_2 WHERE lmp1_winning_team = "Greg Mansell Leo Mansell"