The short answer
Based on available data, the Maserati GranTurismo comes out ahead of the Aston Martin DB9 on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Overall
Sentiment is overwhelmingly positive, with the DB9 consistently praised as a beautiful, classically styled grand tourer that delivers a sublime sense of occasion, comfort, and a sonorous V12 engine note. Long-term owner reports indicate deep satisfaction with the car's character and driving experience for touring and special occasions. However, a strong and very frequent theme is the significant and potentially ruinous cost of maintenance, repairs, and parts, which is framed as the inherent trade-off for owning a hand-built, low-volume luxury vehicle.
Best version to buy
Insufficient owner data available to declare a consensus "best" model year or trim. Discussions suggest later models (post-2010) may benefit from refinements and resolved early issues.
Known issues
Overall
Sentiment is mixed and highly dependent on owner expectations and maintenance approach. The vehicle is described as an "emotional decision, not a logical decision," prized for its intoxicating Ferrari-derived V8 engine sound, striking design, and the visceral, comfortable grand touring experience, often compared to a "leather couch strapped to a Ferrari V-8." However, this generation is subject to widespread and severe criticism for ruinous unreliability, questionable build quality, and massive depreciation. The interior is frequently cited as dated, senseless, and prone to specific failures like sticky buttons and bubbling dash leather.
Best version to buy
Insufficient owner data available to specify a best trim or model year. Owner discussions focus on the model generation as a whole rather than comparing specific variants.
Known issues
The verdict
The Maserati GranTurismo is the better choice for most buyers.
It has more power on its best-equipped version than the Aston Martin DB9, based on the data above. If efficiency matters more to you than outright power, the Aston Martin DB9 is worth a closer look instead.
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Which is more reliable, the Aston Martin DB9 or the Maserati GranTurismo?
Owner reports show similar reliability sentiment for the Aston Martin DB9 and the Maserati GranTurismo. Check the known issues listed above for specific differences between the two.
Which is better for families, the Aston Martin DB9 or the Maserati GranTurismo?
The Maserati GranTurismo seats more passengers than the Aston Martin DB9 on its catalogued best-equipped version. Body type also differs: the Aston Martin DB9 is classed as a Coupe, the Maserati GranTurismo as a Coupe.
Which has better fuel economy, the Aston Martin DB9 or the Maserati GranTurismo?
Fuel consumption data is limited for one or both models. Check the specs table above for the figures available on each catalogued version.
Which is cheaper to maintain, the Aston Martin DB9 or the Maserati GranTurismo?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Aston Martin DB9 than the Maserati GranTurismo. See the known issues comparison above.