user: Question: For engines of Maserati Straight-6 and entrants of H H Gould, what is the latest year?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1954.0, "Goulds' Garage (Bristol)", 'Cooper T23', 'Bristol Straight-6', 0.0]
SQL:

assistant: SELECT MAX("Year") FROM "Table" WHERE "Engine" = 'Maserati Straight-6' AND "Entrant" = 'H H Gould';