user: Question: What is the torque when engine code is N46B20 and power is PS (kW; hp)@6400?
Columns: ['Model', 'Years', 'Engine code', 'Power', 'Torque']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['sDrive18i', '2010-', 'N46B20', 'PS (kW; hp)@6400', 'N·m (lb·ft)@3600']
SQL:

assistant: SELECT "Torque" FROM "Table" WHERE "Engine code" = 'N46B20' AND "Power" = 'PS (kW; hp)@6400';