The 2013 BMW 320i xDrive belongs to the F30 generation, a car known for blending traditional 3 Series balance with modern all-weather drivability. On this exact model, tire choice is tied closely to wheel package and sub-model layout, with 225/50R17, 225/45R18, and 255/40R18 radial fitments all in play. That means the real decision is not just size, but whether the car has the standard setup or the staggered M Sport package arrangement. Available choices center on blackwall performance-oriented radial tires from BFGoodrich and Nitto, so appearance stays straightforward while fitment, wheel diameter, and front-to-rear sizing remain the important checks.
Which Tire Size Is Right for The 2013 BMW 320i xDrive
Three tire sizes apply to the 2013 BMW 320i xDrive, and the right one depends first on the exact wheel package and whether the car uses a standard or staggered setup. Two sizes use 18-inch rims, while 225/50R17 uses a 17-inch rim, so confirming both the sub-model and the actual wheel diameter on the car is the first step before comparing tire options.
In 225/45R18, the 225 identifies section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 18 is the rim diameter in inches. This size is used on 18-inch wheel applications for the 2013 BMW 320i xDrive and also serves as the front fitment on the M Sport package staggered setup. Available choices include BFGoodrich and Nitto blackwall tires across series such as g-Force Comp 2 AS, g-Force Sport Comp 2, Nitto NT555 G2, and g-Force Phenom T/A. It is the size to evaluate when the car carries 18-inch front wheels and a performance-oriented tire presentation.
In 225/50R17, the 225 is the nominal section width in millimeters, 50 is the aspect ratio, R marks radial construction, and 17 is the wheel diameter in inches. This size belongs to 17-inch wheel applications on the 2013 BMW 320i xDrive rather than the staggered M Sport arrangement. BFGoodrich and Nitto offer blackwall choices in this size, including g-Force Comp 2 AS, g-Force Sport Comp 2, and Nitto NT555 G2. It is the correct size to investigate when the car has factory-style 17-inch wheels and you want to compare tire series within that wheel package.
In 255/40R18, the 255 designates nominal section width in millimeters, 40 is the aspect ratio, R means radial construction, and 18 is the rim diameter in inches. On the 2013 BMW 320i xDrive, this size is used as the rear fitment for the M Sport package staggered setup, so it is not a universal size for every configuration. Product choices are blackwall performance radials from BFGoodrich, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. This is the size to confirm when the car has wider 18-inch rear wheels and a front-to-rear staggered layout.
Sub-model fitment matters on the 2013 BMW 320i xDrive because the standard Base configuration can use either 17-inch or 18-inch tires, while the M Sport package uses a staggered front-and-rear arrangement. Checking the exact sub-model and wheel setup prevents mixing standard and staggered sizes by mistake.
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2013 BMW 320i xDrive Base
The 2013 BMW 320i xDrive Base uses either 225/50R17 or 225/45R18 radial tires, depending on the wheel package on the car. Tire selection starts with confirming whether it has 17-inch or 18-inch wheels, then comparing blackwall performance tire options within that exact size.
The front fitment for the 2013 BMW 320i xDrive w/M Sport Pkg. is 225/45R18 in radial construction. That makes the front tire search straightforward, but the car should still be treated as a staggered setup so front and rear sizes are not chosen interchangeably.
The rear fitment for the 2013 BMW 320i xDrive w/M Sport Pkg. is 255/40R18, a wider radial size than the front. Rear tire selection should focus on matching the staggered layout correctly and confirming that the wheel width corresponds to this broader 18-inch rear fitment.
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 2013 BMW 320i xDrive Tires for Sale
Available tires for the 2013 BMW 320i xDrive center on blackwall radial performance options from BFGoodrich and Nitto. Across the 17-inch and 18-inch fitments, the main differences are tire series, wheel-width compatibility, and whether you are choosing for a standard setup or the staggered M Sport front and rear sizes.
The questions below focus on the tire sizes used on the 2013 BMW 320i xDrive, how the Base and M Sport package fitments differ, and what to compare before choosing tires for road use, wheel setup, and overall fitment.
Tire Size & Fitment
What tire size fits a 2013 BMW 320i xDrive?
The 2013 BMW 320i xDrive uses 225/50R17, 225/45R18, or 255/40R18 depending on the exact configuration. The Base model can use either 225/50R17 or 225/45R18, while the M Sport package uses a staggered arrangement with 225/45R18 in front and 255/40R18 in the rear.
Choosing the right size starts with the actual wheel package on the car, not just the model name on the title. A quick check of the wheel diameter and whether the car has the staggered M Sport layout will narrow the choice immediately and help avoid mixing a standard four-tire setup with front-and-rear-specific fitments.
What size rim does a 2013 BMW 320i xDrive use?
The 2013 BMW 320i xDrive uses either 17-inch or 18-inch rims. The 225/50R17 fitment belongs to a 17-inch wheel, while both 225/45R18 and 255/40R18 are built for 18-inch wheels.
Wheel diameter is the first fitment checkpoint because a 17-inch tire cannot be mounted on an 18-inch wheel, and the reverse is also true. On M Sport package cars, rim width matters as well because the wider 255/40R18 rear tire is intended for a broader rear wheel than the 225/45R18 front tire.
Why does the 2013 BMW 320i xDrive have more than one tire size?
More than one tire size appears because the 2013 BMW 320i xDrive was offered with different wheel packages, including a standard setup and an M Sport package staggered setup. The Base model can use either a 17-inch or 18-inch square fitment, while the M Sport package splits front and rear tire sizes.
That difference changes the buying process. A standard square setup usually uses the same size at all four corners, but a staggered car needs the correct front tire and the correct wider rear tire. Verifying the wheels already on the car is especially important if it has been changed from its original package over time.
Choosing the Right Tire
What should I consider when choosing a 2013 BMW 320i xDrive tire?
Start with the exact tire size and wheel layout on the car: 225/50R17, 225/45R18, or the staggered 225/45R18 front and 255/40R18 rear arrangement. From there, compare radial tire series, brand choices, and wheel-width compatibility so the tire matches both the wheel and the intended use of the car.
A daily-driven xDrive sedan and a more aggressively equipped M Sport package car can point you toward different priorities even within the correct size. It helps to compare whether the tire is aimed more at all-season use or sport-oriented driving, while also confirming that the wheel width falls within the product's supported range.
What sidewall styles are available for 2013 BMW 320i xDrive tires?
The available tires for the 2013 BMW 320i xDrive use a blackwall sidewall style. That keeps the appearance modern and straightforward across the 17-inch and 18-inch radial fitments offered for this model.
Since sidewall styling does not vary here, the main visual and functional differences come from tire series and wheel fitment rather than from whitewalls, raised letters, or stripe treatments. Buyers comparing options should focus more on matching the correct size and setup than on expecting major sidewall appearance variations within these choices.
What brands offer tires for the 2013 BMW 320i xDrive?
BFGoodrich and Nitto both offer tires for the 2013 BMW 320i xDrive. Depending on the size, the available series include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2.
Brand choice should come after size and wheel confirmation, especially on cars with staggered 18-inch M Sport fitment. Once the correct size is established, comparing the available series can help narrow the selection by intended use, supported wheel-width range, and whether the tire is being chosen for the front, the rear, or a non-staggered four-tire setup.
Restoration & Appearance
Which tire should I choose for a period-style 2013 BMW 320i xDrive?
A period-style approach for a 2013 BMW 320i xDrive usually begins with keeping the original wheel diameter and the correct size for the car's configuration, whether that is 225/50R17, 225/45R18, or the staggered 225/45R18 front and 255/40R18 rear setup. All of the available choices here are modern blackwall radial tires.
Because this is a modern BMW rather than an earlier collector-era car, appearance is tied more to preserving the proper stance and wheel package than to whitewall or redline styling. Matching the car's actual wheel setup and maintaining the correct front-to-rear relationship on M Sport package cars will usually matter more than chasing a nostalgic sidewall treatment.
Does correct tire fitment matter for a 2013 BMW 320i xDrive restoration?
Correct tire fitment matters because it preserves the intended relationship between wheel diameter, tire profile, and overall stance on the 2013 BMW 320i xDrive. That is especially important on M Sport package cars, where the front and rear tires are intentionally different sizes.
A restoration-minded owner should confirm the actual wheels on the car before buying tires, since later wheel swaps can blur the original package. Using the right size for the right wheel keeps the finished car visually coherent and helps avoid fitment issues that can come from mixing standard square sizes with a staggered arrangement.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 BMW 320i xDrive?
Yes, modifications can affect tire fitment on a 2013 BMW 320i xDrive. Aftermarket wheels, changes in wheel width or offset, suspension lowering, and body or brake modifications can all alter how a 225/50R17, 225/45R18, or 255/40R18 tire sits in the wheel opening.
A car that no longer has its original wheels should be checked carefully before ordering tires. Measuring the actual wheel diameter and width, then inspecting steering lock clearance, fender clearance, and rear-wheel room on staggered setups, is more reliable than assuming the car still matches its original configuration.
What should I inspect before driving a 2013 BMW 320i xDrive on new tires?
Before road use, inspect tire pressure, lug torque, visible sidewall condition, tread surface, and any sign of rubbing or uneven clearance. On a 2013 BMW 320i xDrive with staggered M Sport fitment, it also helps to confirm that the 225/45R18 fronts and 255/40R18 rears are mounted in the correct positions.
The first miles are a good time to listen for contact at full steering lock and watch for vibration that may point to balance or wheel issues. A quick recheck after installation helps catch problems early, especially if the car has not been driven recently or has had wheel, suspension, or alignment work.
How often should tires on a 2013 BMW 320i xDrive be inspected?
Tires on a 2013 BMW 320i xDrive should be inspected regularly, not just when they look low or worn. Monthly pressure checks, visual inspections for cuts, bulges, cracking, and uneven tread wear, and a closer look before longer drives are sensible habits for a car that may see mixed seasonal use.
Inspection matters even more if the car sits for long periods or has performance-oriented tires that may age out before they wear out. Keeping an eye on tread wear patterns can also reveal alignment or suspension issues, which is especially useful on staggered setups where front and rear tires perform different roles.
