The 2018 Fiat 500 carries the modern revival of Fiat’s city-car formula, blending compact dimensions, distinctive Italian styling, and trim-specific personality into a small hatchback with very different tire needs depending on the version. On this model, tire fitment centers on three radial sizes: 195/45R16, 205/40R17, and 185/55R15. That means the first decision is identifying the exact sub-model, especially separating Abarth and 500e configurations from the more common 16-inch cars. Available choices range from blackwall performance-oriented radials to a whitewall option in 185/55R15, so appearance, ride character, wheel size, and intended use all deserve a closer look before replacing tires.
Which Tire Size Is Right for The 2018 Fiat 500
The 2018 Fiat 500 uses three primary tire sizes, and the right one depends on the exact sub-model and wheel diameter. All three are radial metric sizes, but they do not serve the same configurations. Before choosing a tire, confirm whether the car is a standard 500, an Abarth or Abarth Cabrio, or a 500e variant, then verify whether it is on 15-inch, 16-inch, or 17-inch wheels.
Fit(s): 1957 Retro Edition, Abarth, Abarth Cabrio, Lounge, Pop, c 1957 Retro Edition, c Lounge, and c Pop
Construction: Radial|Rim: 16 in
195/45R16 is a modern metric radial size: 195 is the nominal section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 16 is the wheel diameter in inches. On the 2018 Fiat 500, this size covers many of the standard non-electric and some performance-oriented configurations, making it a common fitment within the range. It sits in the compact, low-profile category that suits the Fiat 500’s quick steering and small overall footprint. Buyers choosing this size should confirm the exact trim and wheel package first, since it does not cover every 2018 Fiat 500 variation.
205/40R17 is a metric radial size with a 205-millimeter nominal section width, a 40-series profile, radial construction, and a 17-inch wheel diameter. On the 2018 Fiat 500, this size is tied to Abarth and Abarth Cabrio applications, where the larger wheel and shorter sidewall create a distinctly different fitment from the standard 16-inch cars. Available products in this size come from BFGoodrich in blackwall form and include the g-Force Sport Comp 2 and g-Force Phenom T/A series. It is the size to evaluate when the car has the correct Abarth-related wheel setup and 17-inch rims.
Fit(s): e Front, e Rear, e Sport Front, and e Sport Rear
Construction: Radial|Rim: 15 in
185/55R15 is a metric radial size in which 185 denotes nominal width in millimeters, 55 is the aspect ratio, R means radial, and 15 identifies the wheel diameter. On the 2018 Fiat 500, this fitment belongs to 500e and 500e Sport front and rear applications, making it specific to the electric versions rather than the wider gasoline lineup. Choices in this size include both a blackwall Michelin Pilot Exalto PE2 and an American Classic radial with a 1.625-inch whitewall and asymmetrical tread. That gives buyers a real decision between a conventional modern appearance and a more stylized presentation.
Tire fitment varies across the 2018 Fiat 500 lineup, so checking the exact sub-model matters before choosing a replacement. Most trims share the 16-inch fitment, Abarth versions can use either 16-inch or 17-inch sizing, and 500e models use a separate 15-inch setup.
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2018 Fiat 500 1957 Retro Edition
The 2018 Fiat 500 1957 Retro Edition uses the 195/45R16 radial size. Tire selection here is mainly about staying with the correct 16-inch metric fitment and then choosing the tread style, brand, and overall tire character that best suits the car’s appearance and everyday use.
The 2018 Fiat 500 Abarth can use either 195/45R16 or 205/40R17 radial tires, so wheel diameter must be confirmed before replacing anything. That makes this sub-model more dependent on the actual wheel package than most of the lineup, especially when comparing standard and larger-diameter setups.
The 2018 Fiat 500 Abarth Cabrio also uses either 195/45R16 or 205/40R17 radial tires. Choosing correctly starts with the wheel size already on the car, then moves to selecting a tire that matches the intended balance of appearance, handling feel, and normal driving use.
The 2018 Fiat 500 Lounge uses the 195/45R16 radial size. Since fitment is straightforward on this trim, the main job is confirming the 16-inch wheel and then selecting a tire that matches the car’s road use and preferred visual presentation.
The 2018 Fiat 500 Pop uses the 195/45R16 radial size. Tire selection is less about sorting through multiple fitments and more about making sure the replacement keeps the proper size and suits the owner’s driving style and wheel setup.
The 2018 Fiat 500 c 1957 Retro Edition uses the 195/45R16 radial size. With only one primary fitment in play, buyers can focus on choosing a tire that preserves the correct dimensions while supporting the car’s style and typical street-driven use.
The 2018 Fiat 500 c Lounge uses the 195/45R16 radial size. That keeps fitment simple, leaving the decision centered on selecting the right 16-inch radial tire for the car’s appearance, ride preference, and normal driving conditions.
The 2018 Fiat 500 c Pop uses the 195/45R16 radial size. Replacement shopping is mostly about staying with the proper metric radial dimensions and confirming that the existing wheels remain the original 16-inch configuration.
The 2018 Fiat 500 e Front uses the 185/55R15 radial size. This fitment is specific to the electric model, so buyers should stay focused on the 15-inch setup and compare available tires by sidewall style, rim-width compatibility, and intended street use.
The 2018 Fiat 500 e Rear uses the 185/55R15 radial size. Since the front and rear share the same primary size here, the key decision becomes choosing between the available product styles while confirming the wheels and overall setup remain stock-sized.
The 2018 Fiat 500 e Sport Front uses the 185/55R15 radial size. Buyers can treat this as a dedicated 15-inch electric-model fitment and compare the available radial options by appearance, construction details, and wheel compatibility rather than by multiple primary sizes.
The 2018 Fiat 500 e Sport Rear uses the 185/55R15 radial size. Because this application shares the same basic sizing approach as the front, replacement selection comes down to choosing a tire that matches the wheel dimensions and the desired look of the vehicle.
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 Fiat 500 Tires for Sale
Available product choices center on 205/40R17 and 185/55R15, with BFGoodrich, Michelin, and American Classic represented. Buyers can compare blackwall performance-style radials against a wide whitewall 185/55R15 option, along with differences in tire series, rim-width specifications, load figures, and overall presentation.
These 2018 Fiat 500 tire questions focus on the issues that matter most on this model: trim-specific sizing, wheel diameter, available radial choices, appearance differences, and the checks worth making before putting a small, low-profile car back on the road.
Tire Size & Fitment
What tire size fits a 2018 Fiat 500?
The 2018 Fiat 500 uses three primary tire sizes: 195/45R16, 205/40R17, and 185/55R15. The correct one depends on the sub-model and wheel package. Many standard Fiat 500 trims use 195/45R16, Abarth and Abarth Cabrio applications can use either 195/45R16 or 205/40R17, and 500e variants use 185/55R15.
That means the first step is not simply buying by year and model name. Check the exact trim, then confirm the wheel diameter already on the car. A standard 16-inch setup, a 17-inch Abarth setup, and a 15-inch 500e setup are not interchangeable choices just because they all belong somewhere in the 2018 Fiat 500 lineup.
What size rim does a 2018 Fiat 500 use?
A 2018 Fiat 500 can use 15-inch, 16-inch, or 17-inch rims, depending on the version. The 185/55R15 size uses a 15-inch rim, the 195/45R16 size uses a 16-inch rim, and the 205/40R17 size uses a 17-inch rim. Rim diameter changes with the tire size rather than remaining constant across the lineup.
Wheel diameter should be confirmed before any tire purchase, especially on Abarth models that may appear similar while using different wheel packages. Looking at the sidewall size already mounted is the quickest check. If the car has aftermarket wheels, verify both diameter and width so the replacement tire matches the actual hardware on the vehicle.
Why does the 2018 Fiat 500 have more than one tire size?
The 2018 Fiat 500 has more than one tire size because the lineup includes several distinct configurations. Standard trims, Abarth performance variants, and 500e electric models do not all use the same wheel-and-tire package. That is why the range includes 195/45R16, 205/40R17, and 185/55R15 rather than a single universal fitment.
This matters because the correct tire follows the exact version of the car, not just the badge on the hatch. Abarth and 500e models can require a different wheel diameter from the more common trims. Matching the tire to the sub-model and existing wheel setup helps avoid clearance problems, handling changes, and simple ordering mistakes.
Choosing the Right Tire
What should I consider when choosing a tire for a 2018 Fiat 500?
Start with the correct size for the exact sub-model, then confirm the wheel diameter already on the car. A 2018 Fiat 500 may need 185/55R15, 195/45R16, or 205/40R17, and all are radial tires. After size is settled, compare sidewall style, tire series, brand, and any stated rim-width or load specifications that apply to the tire.
The right choice depends on how the car is used and how the owner wants it to look. A 500e owner may want to compare a blackwall tire against a wide whitewall option, while an Abarth owner may be focused on 17-inch blackwall performance-oriented choices. Modified wheels or suspension changes make careful measurement even more important.
What sidewall styles are available for 2018 Fiat 500 tires?
Two sidewall styles appear among the available 2018 Fiat 500 tire choices here: Blackwall and Wide Whitewall. The blackwall options cover both the 205/40R17 and 185/55R15 sizes, while the wide whitewall offering appears in 185/55R15. That gives some owners a straightforward appearance decision in addition to basic size and wheel compatibility.
Sidewall style changes the visual character of a small car more than many buyers expect. A blackwall keeps a modern look, while a wide whitewall creates a much more stylized presentation. Appearance should still come after fitment, so confirm the exact size and wheel dimensions first, then decide whether the tire’s sidewall treatment suits the car.
What brands offer tires for the 2018 Fiat 500?
The available tires here for the 2018 Fiat 500 come from BFGoodrich, Michelin, and American Classic. BFGoodrich appears in the 205/40R17 size, while Michelin and American Classic appear in 185/55R15. Those brand differences also line up with different tire series and sidewall presentations rather than representing the same product repeated under multiple names.
Brand should be considered alongside the actual fitment and product details, not ahead of them. A 17-inch Abarth application calls for a different tire category than a 15-inch 500e application, so the first question is always which size belongs on the car. Once that is settled, compare the available series, sidewall style, and wheel-width compatibility.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Fiat 500?
A period-style approach on a 2018 Fiat 500 still starts with the correct modern radial size for the exact sub-model. The strongest appearance distinction among the available choices appears in 185/55R15, where both a blackwall Michelin and a wide whitewall American Classic radial are available. Other fitments shown here stay in a more contemporary blackwall presentation.
That means style goals should be filtered through the tire size the car actually uses. A whitewall may create a retro-inspired look on a 500e, but it should not be treated as a universal styling answer for every trim. When a very exact appearance matters, compare tire choice against model-specific photos, brochures, or marque references before deciding.
How does tire construction affect the appearance of a restored 2018 Fiat 500?
On the 2018 Fiat 500, construction is less of an appearance dividing line than it would be on an older collector car because the primary fitments are already radial. The visual difference comes more from sidewall treatment and tire series character than from choosing between bias-ply and radial. In the products shown here, blackwall and wide whitewall are the clearest appearance changes.
That makes size accuracy and sidewall style the main restoration-oriented concerns. A correctly sized radial that suits the trim’s wheel diameter will usually preserve the intended stance better than chasing an unrelated look. Buyers focused on a clean factory-inspired presentation should pay close attention to the existing wheel package and avoid substituting sizes without checking proportions and clearance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Fiat 500?
Yes, modifications can affect tire fitment on a 2018 Fiat 500. Aftermarket wheels, changes in wheel width, different offsets, lowered suspension, or body alterations can all change how a 185/55R15, 195/45R16, or 205/40R17 tire sits in the wheel opening. That matters even more on a compact car with low-profile tires and limited extra space.
A modified Fiat 500 should be checked for steering clearance, inner-fender room, and sidewall-to-suspension clearance before a new tire is selected. Even when the size code matches a factory application somewhere in the lineup, the actual car may no longer mirror that setup. Measuring the current wheel and looking closely at clearance points helps avoid unpleasant surprises.
What should I inspect before driving a 2018 Fiat 500 on new tires?
Before driving a 2018 Fiat 500 on new tires, inspect the wheels for damage, make sure the installed tire size matches the car’s trim and wheel diameter, and confirm that inflation is set correctly for the application. It also helps to look over valve stems, check lug torque, and verify that the tires clear suspension and body components through full steering travel.
A short test drive should include listening for rubbing, feeling for vibration, and rechecking pressure afterward. Small cars with short sidewalls can react quickly to wheel damage or alignment issues, so uneven wear patterns and pull should not be ignored. Catching those problems early protects both the new tires and the way the Fiat 500 drives.
How often should tires on a 2018 Fiat 500 be inspected?
Tires on a 2018 Fiat 500 should be inspected regularly, not just at replacement time. Pressure, tread wear, cracking, cuts, bulges, and any signs of air loss deserve routine attention, especially because low-profile tires can show the effects of impact damage more quickly. A visual check every month and before longer drives is a sensible baseline.
It also pays to inspect sooner after pothole strikes or curb contact, particularly on 16-inch and 17-inch fitments with shorter sidewalls. Cars that are driven infrequently still need attention because age and storage conditions affect tire condition even when mileage stays low. Consistent inspection helps the owner catch wear or fitment problems before they become roadside issues.
