The 2018 Mercedes-Benz AMG GT R sits at the hard-edged end of the AMG GT range, blending modern supercar performance with a track-focused chassis and an aggressive staggered tire setup. Tire choice on this car is not a simple one-size decision, because the front and rear use different radial sizes: 275/35R19 up front and 325/30R20 in the rear. That split setup shapes steering response, rear traction, and the overall stance of the car. Available choices in the front size include several BFGoodrich and Nitto blackwall radial designs. Before selecting tires, confirm whether the goal is matched road use, replacement of a worn front pair, or a full staggered setup that preserves the car’s intended balance.
Which Tire Size Is Right for The 2018 Mercedes-Benz AMG GT R
The 2018 Mercedes-Benz AMG GT R uses two primary tire sizes, and they are tied to position rather than interchangeable fitment. The front uses a 19-inch radial, while the rear uses a 20-inch radial, so the first step is confirming whether you are replacing the front or rear tires and matching the correct wheel diameter before comparing tire choices.
275/35R19 is a metric radial size in which 275 identifies the nominal section width in millimeters, 35 is the aspect ratio, R indicates radial construction, and 19 is the rim diameter in inches. On the 2018 Mercedes-Benz AMG GT R, this is the front tire size, so it plays a direct role in turn-in feel and front-end response. Available options include BFGoodrich and Nitto products, all in blackwall form, with several g-Force series choices alongside the NT555 G2. Choosing within this size comes down to preserving the correct front fitment while comparing series characteristics and wheel-width compatibility.
325/30R20 is a metric radial size where 325 is the nominal section width in millimeters, 30 is the aspect ratio, R marks radial construction, and 20 designates the wheel diameter in inches. On the 2018 Mercedes-Benz AMG GT R, this size belongs at the rear as part of the car’s staggered fitment. That makes rear-wheel position especially important, since this size is there to support the wider back end and intended stance. Before selecting any rear tire, confirm the 20-inch wheel setup and make sure the replacement matches the vehicle’s position-specific fitment.
Fitment on the 2018 Mercedes-Benz AMG GT R is straightforward, but it varies by tire position rather than by trim level. Checking whether you are working with the front or rear matters because the car uses different sizes and different rim diameters at each end.
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2018 Mercedes-Benz AMG GT R Base Front
The 2018 Mercedes-Benz AMG GT R Base Front uses the 275/35R19 radial size. That means front tire selection should stay focused on the correct 19-inch fitment while comparing the available blackwall performance tire series in that size.
The 2018 Mercedes-Benz AMG GT R Base Rear uses the 325/30R20 radial size. Rear tire replacement starts with confirming the 20-inch wheel and preserving the staggered layout that separates rear fitment from the front axle.
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 Mercedes-Benz AMG GT R Tires for Sale
Available 275/35R19 front tire choices for the 2018 Mercedes-Benz AMG GT R include BFGoodrich and Nitto blackwall radials across several performance-oriented series, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. The main comparison points are tire series and wheel-width compatibility.
These FAQs focus on the staggered tire sizing used on the 2018 Mercedes-Benz AMG GT R, including front-versus-rear fitment, rim diameter, product selection, and the checks that matter before road use or replacement.
Tire Size & Fitment
What tire size fits a 2018 Mercedes-Benz AMG GT R?
The 2018 Mercedes-Benz AMG GT R uses a staggered radial tire setup with 275/35R19 on the front and 325/30R20 on the rear. Those are position-specific sizes, so the front and rear are not the same and should not be treated as interchangeable fitments on the car.
The practical first step is identifying which axle needs tires, because the wheel diameters differ as well as the tire sizes. A front replacement requires a 19-inch fitment, while the rear requires a 20-inch fitment, and any change should be checked against the existing wheel setup and vehicle clearance.
What size rim does a 2018 Mercedes-Benz AMG GT R use?
The 2018 Mercedes-Benz AMG GT R uses two rim diameters as part of its staggered setup: 19-inch wheels at the front with 275/35R19 tires and 20-inch wheels at the rear with 325/30R20 tires. The tire sizes and wheel diameters work together, so each position has its own intended combination.
That means wheel diameter needs to be confirmed before ordering a replacement tire, especially if the car has seen wheel changes. The available 275/35R19 front products include fitment ranges around 9 to 11 inches in rim width, which is another useful check when comparing front tire options.
Do all 2018 Mercedes-Benz AMG GT R sub-models use the same tire size?
The covered AMG GT R fitment is consistent in layout, but not the same at all four corners. The Base Front uses 275/35R19, while the Base Rear uses 325/30R20, so the difference is based on tire position rather than a separate trim or package variation.
That matters because the buying decision is really about front-versus-rear replacement, not choosing among several trim-level tire packages. Anyone replacing a pair should confirm that the correct axle is being matched, and anyone replacing all four should preserve the staggered arrangement unless the car has been deliberately reconfigured.
Choosing the Right Tire
What should I consider when choosing a 275/35R19 tire for a 2018 Mercedes-Benz AMG GT R?
Start with the correct front size, because 275/35R19 is the front fitment for the 2018 Mercedes-Benz AMG GT R. From there, compare the available radial choices by tire series, brand, and wheel-width compatibility rather than treating every tire in that size as the same.
BFGoodrich and Nitto both offer options in this size, with blackwall sidewalls and several distinct performance-oriented series. It also helps to compare details such as rim-width range, product weight, and load information where available, especially if the car is driven hard or has wheel changes that could affect front-end fitment.
What brands offer tires for the 2018 Mercedes-Benz AMG GT R?
Available tires in the 275/35R19 front size for the 2018 Mercedes-Benz AMG GT R come from BFGoodrich and Nitto. BFGoodrich options include multiple g-Force series, while Nitto offers the NT555 G2, giving the buyer a few distinct product lines within the correct front fitment.
Brand choice should still come after confirming the correct size and wheel setup for the axle being serviced. Instead of trying to rank one brand against another in the abstract, it is more useful to compare the individual tire series, sidewall presentation, rim-width specifications, and any load or weight details that matter for the car’s use.
What tire series are available for the 2018 Mercedes-Benz AMG GT R?
In the 275/35R19 front size, the 2018 Mercedes-Benz AMG GT R has access to several tire series: BFGoodrich g-Force Comp 2 AS, BFGoodrich g-Force Sport Comp 2, BFGoodrich g-Force Phenom T/A, and Nitto NT555 G2. All are radial blackwall options for the front fitment.
Series names help separate the choices in the product grid, but the right comparison still starts with fitment. A useful approach is to keep the correct front size fixed, then look at wheel-width range, any available load figure, and the overall tire character you want from the front axle without disrupting the car’s staggered setup.
Restoration & Appearance
Does correct tire fitment matter for a 2018 Mercedes-Benz AMG GT R restoration or preservation project?
Yes. Even on a modern performance car like the 2018 Mercedes-Benz AMG GT R, correct tire fitment matters because the car uses a deliberate staggered arrangement with different front and rear sizes. Preserving 275/35R19 in front and 325/30R20 in the rear helps maintain the intended visual balance and wheel-to-tire proportion.
A preservation-minded owner should pay attention not only to size, but also to construction, sidewall appearance, and the overall look of the tire on the wheel. If the car has been modified over time, confirm the actual wheel diameters and widths before choosing replacement tires so the finished setup still presents properly.
How does tire construction affect the appearance of a preserved 2018 Mercedes-Benz AMG GT R?
The 2018 Mercedes-Benz AMG GT R uses radial tires, so construction choice is less about switching between vintage formats and more about maintaining the modern, low-profile performance look that belongs with the car’s staggered wheel package. The 275/35R19 front options available here are all blackwall radials, which keeps the presentation clean and contemporary.
Appearance on this car comes from the overall combination of section width, profile, and wheel diameter more than from decorative sidewall treatments. Keeping the correct front and rear sizing relationship intact is usually the biggest factor in preserving the car’s intended stance, especially if it is being maintained as a collector or enthusiast vehicle.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Mercedes-Benz AMG GT R?
Yes. Any change to wheel width, wheel diameter, offset, suspension height, or body clearance can affect tire fitment on a 2018 Mercedes-Benz AMG GT R. That matters even more on a staggered car using 275/35R19 in front and 325/30R20 in the rear, because each axle has its own space and wheel requirements.
A modified car should be checked carefully before replacement tires are chosen. Wheel diameter must match the intended tire size, and the final setup should be reviewed for steering clearance at the front, fender and suspension clearance at both ends, and enough room for the tire under compression and normal road use.
What should I inspect before driving a 2018 Mercedes-Benz AMG GT R on new tires?
Before road use, inspect tire pressure, bead seating, wheel condition, valve stems, and visible clearance around the suspension and fenders. On a 2018 Mercedes-Benz AMG GT R, it also helps to confirm that the front tires are 275/35R19 and the rear tires are 325/30R20 so the staggered layout has been preserved correctly.
A short, careful test drive is the best next step after installation. Listen for rubbing, watch for vibration, and recheck pressure after the tires have settled in, especially if the car has aftermarket wheels or has been stored for long periods and is just returning to regular road use.
What should I check before a longer drive in a 2018 Mercedes-Benz AMG GT R?
Before a longer drive, check tread condition, inflation pressure, sidewall condition, and any signs of cuts, bulges, or irregular wear. A 2018 Mercedes-Benz AMG GT R also deserves a quick confirmation that the correct front and rear sizes remain in place, since the car depends on its staggered radial setup.
Collector and low-use performance cars can look fine while still having age-related tire issues, so a visual inspection alone is not enough. It is smart to check for slow air loss, verify that the wheels are free of damage, and make sure nothing in the suspension or brake area is contacting the tire once the car is fully loaded and moving.
