Join Automotive Rhythms in Modena, Italy as we dig deep with MaseratiâÂÂs latest pupil. The soul of the GranTurismo S Automatic is the most powerful version of the Maserati wet sump V8 engine family. The 4.7-liter delivers 433 horsepower at 7,000 rpm with a maximum torque of 490 at 4,750 rpm.