With the introduction of the GranTurismo S and now the GranTurismo Convertible, the 2010 Maserati GranTurismo lineup is equal to anything else in the class. Thankfully, Maserati stays with the new ZF transmission that reviews read by TheCarConnection.com indicate is among the best available.
Car and Driver finds that base Maserati GranTurismo models come with "a 405 horsepower, 4.2-liter wet-sump iteration of the engine you'd normally locate in the middle of a Ferrari F430," while the 2010 Maserati GranTurismo S “gets a new version of Maserati's Ferrari-derived aluminum V-8," which displaces 4.7 liters and pumps out "433 horsepower and 361 pound-feet of torque."
While both of the engines emit a ferocious sound, the Maserati GranTurismo S is understandably more intimidating and enjoyable to hear at full throttle. The Maserati GranTurismo Convertible also benefits from the more powerful engine. Automobile Magazine states that "there are faster cars than the GranTurismo S, but none of them make more intoxicating sounds when you select the Sport mode, thereby opening a bypass in the exhaust and liberating countless decibels of race-car-style mayhem." ConsumerGuide is a fan of the Maserati GranTurismo's passing power, noting that "once underway the engine shines...pulling vigorously as revs climb." Acceleration numbers are brisk, with Automobile Magazine reporting that the 2010 Maserati GranTurismo S "leaps from 0 to 60 mph in less than five seconds."
As for the ZF six-speed automatic gearbox, Car and Driver finds that "every shift is a crisp rifle shot preceded by matching revs, followed instantly by a big green LED informing what gear has been summoned." Edmunds reviewers stand their ground against automatics, claiming that they "still like to row [their] own gears with one of those iconic Italian gated shifters," but in their absence, the "crisp automated manual has placated [them] to some extent."
The 2010 Maserati GranTurismo hits a snag in the marketing department: Though it's a grand touring car, it needs rather frequent fill-ups, due to an EPA-estimated gas mileage of 12 mpg in the city and 19 mpg on the highway. This isn't too bad considering the segment of cars it’s bundled in. For example, there's the Ferrari F430, which shares an engine similar to the V-8 found in the Maserati GranTurismo; it gets 11 mpg city and 16 mpg on the highway.
The 2010 Maserati GranTurismo lineup's suspension affords an impressive combination of ride quality and performance. Car and Driver testers note that "the car always felt stable, nicely planted, and free of extraneous body motions," while the ride is "firm but never intrusive." TheCarConnection.com's research supports both of those claims, as ConsumerGuide finds that "every nuance of the road surface is felt but effectively filtered, with no harshness or crashing." The major handling complaint comes from Car and Driver, where reviewers are not fans of the fact that the steering is "too heavy at all speeds" with "some slop on-center."