The 2009 Maserati GranTurismo blends modern grand touring character with classic Italian coupe proportions, giving it the kind of long-hood, rear-drive presence that makes wheel and tire fitment a visible part of the car’s identity. On this model year, tire selection centers on staggered radial sizing, with front and rear fitments differing and wheel diameter depending on configuration. The GranTurismo S uses 20-inch front and rear sizes, while the Base model can appear with either 19-inch or 20-inch fitment. That makes the real decision less about guessing a tire category and more about confirming the exact wheel setup, then choosing the right series, brand, and sidewall treatment for the way the car is used.
Which Tire Size Is Right for The 2009 Maserati GranTurismo
The 2009 Maserati GranTurismo uses four primary tire sizes, and the correct one depends on both axle position and model configuration. Front and rear tires are staggered, and both 19-inch and 20-inch wheel diameters appear, so the first step is confirming whether the car is a Base or GranTurismo S and then verifying the actual front and rear wheel sizes before choosing tires.
245/35R20 is a modern metric radial size in which 245 identifies the nominal section width in millimeters, 35 is the aspect ratio, R indicates radial construction, and 20 is the rim diameter in inches. On the 2009 Maserati GranTurismo, this is a front fitment used with 20-inch wheels. Available choices include BFGoodrich and Nitto options, with blackwall styling across series such as g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This size should be selected only after confirming the car’s front wheel diameter and the intended front-to-rear staggered setup.
245/40R19 is a metric radial size that uses a 245 millimeter nominal section width, a 40-series profile, radial construction, and a 19-inch rim. On the 2009 Maserati GranTurismo, it serves as a front tire size for 19-inch wheel applications rather than the 20-inch setup. BFGoodrich offers this size in blackwall form across g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A series. It is the right direction only when the GranTurismo has the corresponding 19-inch front wheel, so wheel diameter should be confirmed before comparing tire series or specifications.
285/35R20 is a wider metric radial size, with 285 denoting nominal section width in millimeters, 35 identifying the aspect ratio, R marking radial construction, and 20 calling for a 20-inch rim. On the 2009 Maserati GranTurismo, this is a rear fitment used with the 20-inch staggered setup. Product choices include BFGoodrich, Nitto, and Pro-Trac offerings, with blackwall, raised white letter, and redline sidewall treatments available in series such as g-Force Comp 2 AS, NT555 G2, and Street Pro III. It is the rear size to evaluate when the car is equipped with 20-inch rear wheels and the proper staggered front companion size.
285/40R19 is a metric radial rear size that combines a 285 millimeter nominal section width with a 40-series profile and a 19-inch rim diameter. On the 2009 Maserati GranTurismo, it belongs to the 19-inch rear setup rather than the 20-inch arrangement. Its role is to maintain the correct staggered relationship with the matching 19-inch front size, so it should be chosen only after verifying the rear wheel diameter already on the car. The key decision here is wheel setup confirmation first, then selecting a tire that matches the car’s intended road use and axle-specific fitment.
Sub-model fitment matters on the 2009 Maserati GranTurismo because the Base model can use either 19-inch or 20-inch staggered sizing, while the GranTurismo S uses the 20-inch front and rear combination. Checking the exact sub-model and actual wheel diameter prevents mixing front or rear sizes from different setups.
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2009 Maserati GranTurismo Base Front
The 2009 Maserati GranTurismo Base Front uses either a 245/35R20 or 245/40R19 radial tire, depending on which wheel package is on the car. That means front tire selection starts with confirming whether the front wheels are 20-inch or 19-inch before comparing brands or tire series.
The 2009 Maserati GranTurismo Base Rear uses either 285/35R20 or 285/40R19 radial sizing as part of a staggered setup. Rear tire choice should follow the wheel diameter already fitted to the car and remain matched to the corresponding front size family.
The 2009 Maserati GranTurismo S Front uses the 245/35R20 radial size with a 20-inch wheel. Tire selection here is mainly about choosing among the available brands and series while keeping the proper staggered relationship with the rear 20-inch fitment.
The 2009 Maserati GranTurismo S Rear uses the 285/35R20 radial size on a 20-inch wheel. This rear fitment opens up choices in blackwall, raised white letter, and redline styles, but the size still needs to stay paired with the correct 20-inch front setup.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2009 Maserati GranTurismo Tires for Sale
Available 2009 Maserati GranTurismo tire choices focus on radial performance tires in the correct front and rear staggered sizes. Buyers can compare BFGoodrich, Nitto, and Pro-Trac offerings by tire series, blackwall or specialty sidewall style, and rim-width compatibility where stated.
These FAQs focus on the 2009 Maserati GranTurismo’s staggered tire sizing, 19-inch versus 20-inch wheel fitment, available radial tire choices, appearance options, and the checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2009 Maserati GranTurismo?
The 2009 Maserati GranTurismo uses staggered radial tire sizes, with different fitments at the front and rear. Front sizes are 245/35R20 and 245/40R19, while rear sizes are 285/35R20 and 285/40R19. The GranTurismo S uses the 20-inch combination, and the Base model can appear with either the 19-inch or 20-inch setup.
That means tire selection starts with confirming both the sub-model and the actual wheel diameter on the car. A front size should stay matched to its corresponding rear size family, so a 19-inch front and 20-inch rear mix should not be assumed correct unless the wheel setup has been intentionally changed and carefully verified.
What size rim does a 2009 Maserati GranTurismo use?
The 2009 Maserati GranTurismo uses either 19-inch or 20-inch rims, depending on the configuration. The 245/40R19 and 285/40R19 sizes are built for 19-inch wheels, while 245/35R20 and 285/35R20 are built for 20-inch wheels. Front and rear fitment remains staggered either way.
Wheel diameter should be confirmed before anything else, especially on a car that may have had wheels changed over time. Once diameter is established, the next step is making sure the front and rear tires match that wheel package correctly and checking any published rim-width guidance for the specific tire being considered.
Do all 2009 Maserati GranTurismo sub-models use the same tire size?
No. The 2009 Maserati GranTurismo S uses 245/35R20 in front and 285/35R20 in the rear, while the Base model can use either that 20-inch staggered combination or a 19-inch setup with 245/40R19 front and 285/40R19 rear. The car does not use one universal size across every covered configuration.
That variation matters because the correct tire depends on both axle position and wheel diameter. Before choosing replacements, identify whether the car is a Base or S model and confirm the actual front and rear wheels installed, since many grand touring coupes have been updated with aftermarket wheels during their service life.
Choosing the Right Tire
What should I consider when choosing a tire for a 2009 Maserati GranTurismo?
Start with the correct front and rear size pair for the car’s wheel diameter, since the 2009 Maserati GranTurismo uses a staggered setup. From there, compare construction, tire series, rim-width compatibility where stated, load figures when shown, and the kind of road use the car will actually see. The right choice is usually the one that matches the car’s exact setup and intended use.
A GranTurismo driven mainly for fair-weather touring may lead to a different series choice than one used more often on the highway. Tire selection should also stay consistent with the car’s visual presentation, especially when comparing blackwall options with more distinctive rear sidewall treatments.
What sidewall styles are available for 2009 Maserati GranTurismo tires?
Blackwall is the most common sidewall style available for the 2009 Maserati GranTurismo’s applicable tire sizes. In 285/35R20, there are also specialty sidewall choices including raised white letter and redline. Those alternatives appear on rear 20-inch fitment rather than across every size used on the car.
Sidewall style mainly affects appearance, so it should be chosen with the car’s overall presentation in mind. A cleaner modern look often points toward blackwall, while a more customized or visually assertive build may suit raised white letter or redline, provided the tire size still matches the car’s actual rear wheel setup.
What brands offer tires for the 2009 Maserati GranTurismo?
Applicable 2009 Maserati GranTurismo tire options include BFGoodrich, Nitto, and Pro-Trac, depending on the size. BFGoodrich appears across several front and rear fitments, Nitto is available in both 20-inch front and rear sizes, and Pro-Trac appears in 285/35R20 with distinctive sidewall treatments.
Brand is only one part of the decision. It still makes sense to compare the exact tire series, the correct axle position, any stated rim-width range, and whether the sidewall presentation suits the car. The best comparison is between tires in the correct size family for the GranTurismo’s existing wheel package.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Maserati GranTurismo?
A period-style 2009 Maserati GranTurismo usually starts with staying in the correct staggered factory-era size family for the car’s actual 19-inch or 20-inch wheel setup. Since this model uses modern metric radial sizes, the visual decision tends to center on tire series and sidewall treatment rather than choosing between vintage-style constructions.
For a restrained grand touring look, blackwall tires keep the presentation clean and contemporary to the car’s era. If the goal is a more personalized appearance, the available 285/35R20 rear redline or raised white letter options create a more expressive look, but they should still be matched to the correct front and rear sizing.
Does correct tire fitment matter for a 2009 Maserati GranTurismo restoration?
Yes. Correct tire fitment has a strong effect on how a 2009 Maserati GranTurismo sits, how the wheel openings look, and whether the car maintains the intended staggered front-to-rear stance. Using the proper 19-inch or 20-inch size family also helps preserve the visual balance that is central to this model’s design.
Appearance-focused restoration work should begin with the exact wheel diameter already on the car and the correct axle-specific tire sizes. When originality questions go beyond basic fitment, marque-specific references and vehicle history are worth checking before choosing a sidewall treatment or tire series that changes the car’s visual character.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Maserati GranTurismo?
Yes. Wheel changes, suspension lowering, altered offsets, and body modifications can all affect tire fitment on a 2009 Maserati GranTurismo. That matters even more on a staggered car, because front and rear sizes already differ and both 19-inch and 20-inch wheel packages are used across the model range.
Any car with aftermarket wheels should have both axle diameters and widths confirmed before replacement tires are chosen. Clearance at the fenders, inner suspension area, and steering range should also be checked, since a tire that matches the size code still needs to work with the car’s actual wheel and suspension setup.
What should I inspect before driving a 2009 Maserati GranTurismo on new tires?
Before driving a 2009 Maserati GranTurismo on new tires, inspect the wheel size, confirm the front and rear tires are installed in the proper staggered positions, and check inflation pressure carefully. It also makes sense to look over the wheels for damage and confirm that valve stems, balance, and general mounting quality are all in order.
A short initial road test should include attention to steering feel, vibration, and any sign of rubbing at parking-lot speeds and over mild suspension movement. Rechecking pressure after the first few drives is worthwhile, especially on a car that may spend time parked between outings rather than seeing daily use.
How should tires on a 2009 Maserati GranTurismo be inspected and maintained?
Tires on a 2009 Maserati GranTurismo should be inspected regularly for pressure loss, tread wear, cuts, bulges, and sidewall cracking. Because many cars in this class are driven intermittently, age and storage conditions matter almost as much as mileage. Front and rear tires should also be checked as separate fitments because the car uses a staggered setup.
Consistent pressure checks and visual inspection before longer drives help catch issues early. Storage away from prolonged sunlight, heat, moisture, and ozone sources can help preserve the tires on a low-use car, and any sign of uneven wear should prompt a closer look at alignment, wheel condition, and suspension health.
