user: Question: What is top speed of a petrol engine at PS (kW; bhp)@5250-6250?
Columns: ['Model', 'Years', 'Type/code', 'Transmission', 'max. power', 'Torque', '0-km/h (mph) (sec)', 'top speed']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['A7 2.8 FSI', '2010-', 'cc (cuin) V6', 'multitronic', 'PS (kW; bhp)@5250-6250', 'N·m (lb·ft)@3000-5000', '8.3', 'km/h (mph)']
SQL:

assistant: SELECT "top speed" FROM "Table" WHERE "max. power" = 'PS (kW; bhp)@5250-6250';