user: Question: What year was the SL 350 Model?
Columns: ['Model', 'Years', 'Type/code', 'Power@rpm', 'Torque@rpm']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['SL 350', '2003–2006', 'cubic centimetres (cuin) V6 ( M112 )', 'PS (kW; hp)@5700', 'N·m (lb·ft) @3000-4500']
SQL:

assistant: SELECT "Years" FROM "Table" WHERE "Model" = 'SL 350';