Table schema:
CREATE TABLE table_30062172_3 (gt4_winner VARCHAR, circuit VARCHAR, gt3_winner VARCHAR)

Question: When charles bateman michael lyons is the gt3 winner and donington park is the circuit who is the gt4 winner?
SQL: SELECT gt4_winner FROM table_30062172_3 WHERE circuit = "Donington Park" AND gt3_winner = "Charles Bateman Michael Lyons"