user: Question: What engine did the McLaren MP4-20 use?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1997.0, 'Mild Seven Benetton Renault', 'Benetton B197', 'Renault RS9 3.0 V10', '4']
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Chassis" = 'McLaren MP4-20';