user: Question: What driver won the VII Rand Grand Prix?
Columns: ['Race Name', 'Circuit', 'Date', 'Winning driver', 'Constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['II Daily Mirror Trophy', 'Snetterton', '14 March', 'Innes Ireland', 'BRP - BRM', 'Report']
SQL:

assistant: SELECT "Winning driver" FROM "Table" WHERE "Race Name" = 'VII Rand Grand Prix';