The 2018 Maserati GranTurismo sits near the end of a long-running Italian grand touring formula that blended a low, elegant coupe body with serious road presence and high-speed intent. Even late in its production life, it remained a car where stance, balance, and visual proportion mattered as much as outright numbers. Tire fitment on the 2018 Maserati GranTurismo centers on a staggered radial setup with 245/35R20 in front and 285/35R20 in the rear. That creates a real choice between front and rear sizing, plus differences in available brands, series, and sidewall treatments. The right selection starts with confirming position on the car and matching that choice to road use, appearance, and wheel compatibility.
Which Tire Size Is Right for The 2018 Maserati GranTurismo
The 2018 Maserati GranTurismo uses two primary tire sizes, both in radial construction on 20-inch rims. Fitment depends on position rather than a single universal size, so the first step is confirming whether you are replacing the front or rear tires. Once that is clear, the decision shifts to comparing available tire series, sidewall style, rim-width compatibility where stated, and the overall character you want from the car’s staggered setup.
245/35R20 is a modern metric radial size in which 245 identifies the nominal section width in millimeters, 35 is the aspect ratio, R denotes radial construction, and 20 is the wheel diameter in inches. On the 2018 Maserati GranTurismo, this size is used at the front and helps preserve the intended staggered relationship with the wider rear tire. Available choices include BFGoodrich and Nitto offerings in blackwall form across series such as g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. It is the size to evaluate when replacing front tires and matching the car’s front-end fitment to the actual wheel setup.
285/35R20 is a modern metric radial size where 285 gives the nominal section width in millimeters, 35 indicates the aspect ratio, R marks radial construction, and 20 identifies the wheel diameter in inches. On the 2018 Maserati GranTurismo, this is the rear tire size and forms the wider half of the car’s staggered arrangement. Rear tire options include BFGoodrich, Nitto, and Pro-Trac choices, 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. This is the size to focus on when maintaining the car’s rear fitment and overall visual stance.
Sub-model fitment is straightforward in size but position-specific in practice. The covered GranTurismo MC and Sport configurations share the same staggered arrangement, so checking whether the tire is for the front or rear matters more than choosing between separate trim-level tire packages.
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2018 Maserati GranTurismo MC Front
The 2018 Maserati GranTurismo MC Front uses the front half of the staggered radial setup, with 245/35R20 on a 20-inch rim. Tire selection here centers on choosing among the available blackwall front-tire options while confirming the wheel remains the correct front specification.
The 2018 Maserati GranTurismo MC Rear uses the wider rear fitment, 285/35R20, in radial construction on a 20-inch rim. That opens up more variation in sidewall presentation, so the choice can balance rear-wheel fitment needs with the appearance you want at the back of the car.
The 2018 Maserati GranTurismo Sport Front uses 245/35R20 as its front tire size in radial construction. Choosing a replacement means staying with the correct front size and then comparing the available tire series and rim-width specifications where they are stated.
The 2018 Maserati GranTurismo Sport Rear uses the 285/35R20 rear size in radial construction. That makes rear tire selection more about matching the proper staggered fitment and deciding whether a blackwall, raised white letter, or redline sidewall best suits the car’s presentation.
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 2018 Maserati GranTurismo Tires for Sale
Available 20-inch GranTurismo tires span front 245/35R20 and rear 285/35R20 sizes from BFGoodrich, Nitto, and Pro-Trac. The main points of comparison are tire series, blackwall versus RWL or redline sidewall styling at the rear, and stated rim-width compatibility on selected options.
These FAQs focus on the 2018 Maserati GranTurismo’s staggered 20-inch tire fitment, front-versus-rear sizing, available radial choices, appearance differences, and the wheel, clearance, and condition checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2018 Maserati GranTurismo?
The 2018 Maserati GranTurismo uses a staggered tire setup with 245/35R20 at the front and 285/35R20 at the rear. Both are radial sizes mounted on 20-inch rims, so the car does not use one identical size at all four corners in the covered fitment.
That means replacement starts by confirming position on the car before choosing a tire. Front and rear sizes differ in width and overall dimensions, so selecting the wrong one can upset the intended staggered arrangement and create wheel or clearance issues if the car has been modified.
What size rim does a 2018 Maserati GranTurismo use?
The covered 2018 Maserati GranTurismo fitment uses 20-inch rims with both primary tire sizes. The front 245/35R20 and rear 285/35R20 are both built around a 20-inch wheel diameter, which is the key rim size to confirm before ordering replacement tires.
Rim diameter is only part of the picture, especially on a staggered setup. Wheel width still matters, and some tire options include stated width ranges such as 8.0 to 9.5 inches for certain 245/35R20 tires and 9.5 to 11.0 inches for some 285/35R20 choices.
Do all 2018 Maserati GranTurismo sub-models use the same tire size?
The covered 2018 Maserati GranTurismo MC and Sport sub-model positions share the same overall staggered arrangement: 245/35R20 for the front and 285/35R20 for the rear. In that sense, fitment is consistent across the listed sub-models, but it remains position-specific rather than a single universal tire size.
That makes the main check straightforward: identify whether the tire being replaced is on the front or rear axle. The sub-model name matters less than the tire position here, although it is still smart to confirm the actual wheel setup if the car has aftermarket wheels or suspension changes.
Choosing the Right Tire
What should I consider when choosing a 245/35R20 or 285/35R20 tire for a 2018 Maserati GranTurismo?
Start with the correct position-specific size, because the 2018 Maserati GranTurismo uses 245/35R20 in front and 285/35R20 in the rear. From there, compare tire series, radial construction details, stated rim-width compatibility where available, and any load specification that is included on the individual tire option.
The best choice depends on how the car is used and how closely you want to preserve its intended stance. A front tire should be matched to the front wheel specification, while the rear tire should be checked for wheel width, sidewall style, and clearance within the actual rear setup.
What sidewall styles are available for 2018 Maserati GranTurismo tires?
Sidewall style varies by size on the 2018 Maserati GranTurismo. The available 245/35R20 front tires are blackwall, while the 285/35R20 rear tires include blackwall choices as well as RWL and redline options, giving the rear of the car more visual variety than the front.
That matters if appearance is part of the decision, especially on a grand touring coupe with a strong emphasis on stance. A blackwall setup keeps the look understated, while raised white letter or redline rear tires create a more customized presentation that should still be checked against the car’s overall style.
What brands offer tires for the 2018 Maserati GranTurismo?
Tire options for the 2018 Maserati GranTurismo include BFGoodrich and Nitto in the front 245/35R20 size. The rear 285/35R20 size adds Pro-Trac to BFGoodrich and Nitto, so the rear position has a broader brand mix and more visible sidewall-style variety.
Brand selection should still begin with the correct size and wheel compatibility rather than the name on the sidewall alone. It also helps to compare the tire series within each brand, since the GranTurismo’s staggered fitment often means the front and rear may not offer exactly the same product mix.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Maserati GranTurismo?
A period-style choice for a 2018 Maserati GranTurismo starts with preserving the original staggered layout of 245/35R20 in front and 285/35R20 in the rear. From there, a blackwall radial keeps the presentation closest to a contemporary grand touring look, while some rear options allow a more customized visual treatment.
Because this is a late-model collector-era car rather than a vintage restoration case, the main appearance decision is usually subtlety versus personalization. Keeping the front and rear sizes properly matched matters more than chasing novelty, and any deviation in wheel or tire specification should be checked against the car’s actual stance and clearance.
How does tire construction affect the appearance of a restored 2018 Maserati GranTurismo?
For the 2018 Maserati GranTurismo, the primary fitment is radial in both front and rear sizes, so construction does not create a bias-ply-versus-radial appearance choice. The visual difference comes more from tire series and sidewall treatment, especially at the rear where blackwall, RWL, and redline options are available.
That means a restoration-oriented or collector-minded owner is usually choosing how restrained or expressive the car should look rather than changing tire construction type. On a modern Italian GT, sidewall presentation can noticeably affect the overall character, so it is worth considering how the rear tires will look with the car’s wheels and body lines.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Maserati GranTurismo?
Yes, modifications can affect tire fitment on a 2018 Maserati GranTurismo even when the correct nominal tire size is chosen. Aftermarket wheels, altered wheel widths, offset changes, lowering, suspension work, or body modifications can all change how a 245/35R20 front or 285/35R20 rear tire sits in the wheel opening.
A staggered setup leaves less room for guesswork, so the actual wheel and suspension configuration should be checked before replacement. Steering clearance at the front and fender or inner-body clearance at the rear deserve special attention, particularly if the car no longer sits on its original wheel and ride-height package.
What should I inspect before driving a 2018 Maserati GranTurismo on new tires?
Before road use, inspect wheel condition, verify that front and rear tires are mounted in the correct sizes, and confirm inflation is set appropriately for the installed tires. It is also smart to look over valve stems, check for bead seating issues, and make sure there is no rubbing at full steering lock or during suspension movement.
A careful walkaround after the first short drive can catch problems early. Recheck pressure, listen for contact noises, and look for any signs of uneven clearance, especially on a low-profile 20-inch setup where wheel damage, alignment issues, or prior suspension wear can show up quickly in tire behavior.
How often should tires on a 2018 Maserati GranTurismo be inspected?
Tires on a 2018 Maserati GranTurismo should be inspected regularly, not just when tread appears worn. Low-use grand touring cars often spend long periods parked, so pressure loss, sidewall aging, cuts, bulges, and irregular wear can develop even when mileage stays relatively low.
A quick visual and pressure check before drives is a sensible habit, with a more thorough inspection at regular service intervals. Cars stored for long periods benefit from extra attention because flat spotting, aging, and unnoticed air loss can affect how the tire performs once the GranTurismo returns to the road.
