The 2013 BMW 550i xDrive sits at the intersection of executive luxury and all-weather grand touring, pairing V8-powered 5 Series character with BMW’s xDrive all-wheel-drive system. It is a modern performance sedan, so tire fitment is centered on precise radial sizing rather than vintage-style construction choices. This model uses either 245/45R18 or 245/40R19 depending on the sub-model, making wheel diameter and package identification the first step before choosing a tire. Available options focus on blackwall radial performance tires from BFGoodrich and Nitto across several g-Force and NT555 series lines. The real decision is matching the correct size to the car’s wheel setup and intended road use.
Which Tire Size Is Right for The 2013 BMW 550i xDrive
Two tire sizes apply to the 2013 BMW 550i xDrive, and the right choice depends on the exact sub-model and wheel diameter. The Base model uses an 18-inch fitment, while the w/Sport Pkg. version uses a 19-inch fitment. Before comparing tread design, brand, or series, confirm whether the car is equipped with the standard 18-inch wheel setup or the 19-inch Sport Package configuration.
In 245/45R18, the 245 indicates section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 18 is the rim diameter in inches. On the 2013 BMW 550i xDrive, this size belongs to the 18-inch wheel setup and keeps the fitment in a modern radial format suited to a contemporary sport-luxury sedan. Available choices include BFGoodrich and Nitto blackwall tires in series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This is the size to evaluate when the car retains its standard 18-inch wheel arrangement.
In 245/40R19, the 245 is the nominal section width in millimeters, 40 is the aspect ratio, R marks radial construction, and 19 identifies the wheel diameter. On the 2013 BMW 550i xDrive, this size is tied to the w/Sport Pkg. configuration, so it should not be treated as universal across every version of the model. Product selection centers on blackwall BFGoodrich performance radials, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. This fitment matters most when preserving the intended 19-inch wheel package and comparing tires within that specific setup.
Sub-model fitment matters on the 2013 BMW 550i xDrive because tire size changes with the wheel package. Identifying whether the car is a Base model or a w/Sport Pkg. version is the key step before selecting a tire.
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2013 BMW 550i xDrive Base
The 2013 BMW 550i xDrive Base uses the 18-inch tire fitment, keeping selection focused on one primary radial size. That makes the buying decision less about multiple fitments and more about choosing the right blackwall performance tire series for the car’s actual wheel setup and driving use.
The 2013 BMW 550i xDrive w/Sport Pkg. uses the 19-inch tire fitment, so wheel diameter must be confirmed before any comparison shopping begins. Tire selection then comes down to choosing among the available blackwall radial performance options built for that 19-inch Sport Package configuration.
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 550i xDrive Tires for Sale
Available 2013 BMW 550i xDrive tires are modern blackwall radials from BFGoodrich and Nitto in the 245/45R18 and 245/40R19 sizes. The main product differences are tire series, load specification, and rim-width compatibility within the correct 18-inch or 19-inch fitment.
Owners of a 2013 BMW 550i xDrive usually need to sort out the correct tire size first, then compare wheel diameter, product selection, and maintenance concerns. These FAQs focus on fitment, brand and series choices, and the checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2013 BMW 550i xDrive?
The 2013 BMW 550i xDrive uses either 245/45R18 or 245/40R19, depending on the sub-model. The Base model uses 245/45R18, while the 2013 BMW 550i xDrive w/Sport Pkg. uses 245/40R19. Both are radial fitments, but they are tied to different wheel diameters.
That means the first step is confirming which wheel package is on the car rather than choosing by appearance alone. An 18-inch setup and a 19-inch setup call for different tire sizes, so checking the sub-model and actual wheel diameter helps avoid ordering a tire that matches the car generally but not the specific configuration.
What size rim does a 2013 BMW 550i xDrive use?
A 2013 BMW 550i xDrive uses either an 18-inch or 19-inch rim, depending on the version of the car. The 245/45R18 fitment belongs to the 18-inch setup, and the 245/40R19 fitment belongs to the 19-inch setup used on the w/Sport Pkg. model.
Wheel diameter should be verified before comparing brands or tread designs because the tire size is built around that measurement. It is also smart to confirm the actual wheels on the car, especially if it has changed hands or has aftermarket wheels, since a correct model-year fitment does not override a different wheel now installed.
Do all 2013 BMW 550i xDrive sub-models use the same tire size?
No. The 2013 BMW 550i xDrive does not use one universal tire size across its sub-models. The Base model uses 245/45R18, while the w/Sport Pkg. version uses 245/40R19, so the tire size changes with the wheel package and sub-model configuration.
That difference matters because both sizes are valid for the model line but not for the same setup. A buyer should confirm the exact sub-model and inspect the actual wheels on the car before selecting a tire, especially on a used vehicle where wheel swaps, package changes, or replacement wheel sets may have altered the original configuration.
Choosing the Right Tire
What should I consider when choosing a tire for a 2013 BMW 550i xDrive?
Start with the correct size for the car’s actual setup: 245/45R18 for the Base model or 245/40R19 for the w/Sport Pkg. version. From there, compare radial tire series, load specification where stated, and rim-width compatibility so the tire matches both the wheel and the car’s intended use.
A practical choice comes down to how the car is driven and what wheel package it retains. Some owners may want an all-season-oriented series, while others may focus on a more performance-minded option, but the comparison only makes sense after the correct diameter and size are confirmed for the specific 550i xDrive configuration.
What sidewall styles are available for 2013 BMW 550i xDrive tires?
The available tires for the 2013 BMW 550i xDrive are blackwall radials in both 245/45R18 and 245/40R19. That gives the car a clean modern presentation consistent with contemporary BMW fitment, rather than the whitewall, redline, or raised-letter looks associated with earlier collector-era applications.
Since sidewall styling does not vary here, the more useful comparison is between brands and tire series within the correct size. Once the proper 18-inch or 19-inch fitment is confirmed, attention can shift to tread character, load specification, and rim-width range rather than trying to choose among multiple cosmetic sidewall treatments.
What brands offer tires for the 2013 BMW 550i xDrive?
BFGoodrich and Nitto offer tires for the 2013 BMW 550i xDrive in the covered sizes. BFGoodrich appears in both 245/45R18 and 245/40R19 with several g-Force series options, while Nitto is available in 245/45R18 with the NT555 G2.
Brand comparison is most useful after the correct size is settled because the 18-inch and 19-inch fitments do not share the same full product mix. It also helps to compare the tire series within each size, since the available choices differ not just by brand name, but by line, load specification, and wheel-width compatibility.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 BMW 550i xDrive?
Yes. Modifications can change tire fitment on a 2013 BMW 550i xDrive even when the vehicle started with a correct factory-size combination. Aftermarket wheels, altered offsets, suspension changes, or previous package conversions can all affect whether 245/45R18 or 245/40R19 remains the right fit for the car as it sits now.
That is why actual wheel diameter should be checked alongside wheel width and visible clearance before choosing replacement tires. Steering clearance, inner-fender room, and suspension condition all matter on a modern performance sedan, and a tire that matches the original configuration on paper still needs to suit the current wheel and chassis setup.
What should I inspect before driving a 2013 BMW 550i xDrive on new tires?
Before driving on new tires, inspect the wheel size, confirm the tires match the correct 18-inch or 19-inch fitment, and check for proper inflation. It is also smart to look over the wheels for damage and make sure there are no obvious clearance issues at the strut, fender, or steering lock points.
A short road test should be paired with another quick inspection for rubbing, vibration, or unusual air loss. Modern BMW fitment is sensitive to wheel and tire dimensions, so catching a mismatch early is worthwhile, especially if the car has replacement wheels, recent suspension work, or a history of previous tire changes.
How often should tires on a 2013 BMW 550i xDrive be inspected?
Tires on a 2013 BMW 550i xDrive should be inspected regularly rather than only when wear becomes obvious. Check pressure, tread condition, sidewall condition, and any signs of cuts, bulges, or uneven wear, and make those inspections more frequent if the car is driven hard, stored for stretches, or used seasonally.
Regular inspection matters because performance-oriented radial tires can reveal alignment, suspension, or inflation issues through the wear pattern. A quick visual check before longer drives and a closer inspection at routine service intervals helps protect ride quality, handling consistency, and overall fitment confidence on either the 18-inch or 19-inch setup.
