The 2016 BMW 550i xDrive sits in the modern sport-luxury sedan category where strong V8 power, all-wheel-drive traction, and long-distance refinement all shape tire choice. On this chassis, tire fitment is tied closely to trim and wheel package rather than a single one-size answer. Primary sizes include 245/45R18 on 18-inch wheels plus 245/40R19 and 275/35R19 on 19-inch wheels, all in radial construction. Available options center on performance-oriented blackwall tires from BFGoodrich and Nitto across several g-Force and NT555 G2 series choices. The key is confirming the exact sub-model and wheel setup first, especially where staggered 19-inch fitment is involved.
Which Tire Size Is Right for The 2016 BMW 550i xDrive
The 2016 BMW 550i xDrive uses three primary tire sizes, and the right one depends on the exact sub-model and wheel package. Fitment also spans two rim diameters, 18 and 19 inches, so wheel diameter should be confirmed before anything else. Once that is settled, the real comparison shifts to front versus rear staggered fitment, tire series, brand, and the performance character of the available radial options.
245/45R18 is a metric radial size with a 245-millimeter section width, a 45-series aspect ratio, and an 18-inch rim diameter. On the 2016 BMW 550i xDrive, this size serves the 18-inch wheel fitment and keeps the tire in a modern radial format suited to a contemporary sport sedan. Available choices include BFGoodrich and Nitto blackwall tires in g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 lines. This size is the one to evaluate when the car is equipped with the standard 18-inch setup and the goal is matching the correct wheel diameter first.
245/40R19 is a metric radial size that uses a 245-millimeter width, a lower 40-series profile, and a 19-inch wheel. On the 2016 BMW 550i xDrive, it appears on certain 19-inch configurations and is also used as the front size on the staggered M Sport arrangement. BFGoodrich offers this size in blackwall g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A versions. This is the size to check when the car has 19-inch front fitment and the buyer wants to stay aligned with the wheel package used on Luxury Line or M Sport applications.
275/35R19 is a wider metric radial size with a 275-millimeter section width, a 35-series profile, and a 19-inch rim diameter. On the 2016 BMW 550i xDrive, this size is used as the rear tire in the staggered M Sport setup rather than as a universal fitment across every configuration. Product choices include blackwall performance tires from BFGoodrich and Nitto, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size matters most when matching rear fitment correctly on a staggered car and confirming that the rear wheel width suits the tire.
Sub-model fitment matters on the 2016 BMW 550i xDrive because tire size changes with the wheel package. Some versions use a single square setup, while the M Sport arrangement can split front and rear sizes, making trim and wheel confirmation the first step before selecting tires.
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2016 BMW 550i xDrive Base
The Base model uses the 245/45R18 radial fitment on an 18-inch wheel setup. Tire selection here is mainly about choosing among the available blackwall performance-oriented options while staying with the correct 18-inch size.
The Luxury Line uses 245/40R19 radial tires on a 19-inch setup. That makes wheel diameter the key checkpoint, after which the decision becomes comparing the available BFGoodrich tire series in the correct size.
The M Sport uses 245/40R19 radial tires in the covered fitment. The main task is confirming whether the car retains this square setup or a staggered front-and-rear arrangement before comparing tire series and wheel compatibility.
The M Sport Front position uses 245/40R19, making it the front half of the staggered 19-inch package. Front tire selection should be made with the matching rear size in mind so the complete setup stays consistent across the axle pair.
The M Sport Rear position uses the wider 275/35R19 radial size on a 19-inch wheel. Rear fitment choice should focus on maintaining the correct staggered relationship and confirming that the wheel width matches the requirements of the selected tire.
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 2016 BMW 550i xDrive Tires for Sale
Available 2016 BMW 550i xDrive tires focus on radial blackwall performance options in 245/45R18, 245/40R19, and 275/35R19. The main comparisons are between BFGoodrich and Nitto, with g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 series choices depending on size.
Common questions for the 2016 BMW 550i xDrive usually center on identifying the correct tire size by sub-model, confirming 18-inch versus 19-inch wheel fitment, and choosing among the available radial performance tires for square or staggered setups.
Tire Size & Fitment
What tire size fits a 2016 BMW 550i xDrive?
The 2016 BMW 550i xDrive uses three primary tire sizes: 245/45R18, 245/40R19, and 275/35R19. Which one belongs on the car depends on the exact sub-model and wheel package, with 18-inch and 19-inch fitments both used across the range.
That means the first step is confirming the car's actual wheel diameter and whether it has a square setup or a staggered front-and-rear arrangement. A Base model uses a different fitment path than a 19-inch Luxury Line or M Sport car, so checking the current wheel and trim setup prevents ordering the right size for the wrong configuration.
What size rim does a 2016 BMW 550i xDrive use?
The 2016 BMW 550i xDrive uses both 18-inch and 19-inch rim diameters, depending on sub-model. The 245/45R18 size belongs on an 18-inch wheel, while 245/40R19 and 275/35R19 are 19-inch tire sizes used on 19-inch wheels.
Rim diameter should be verified before comparing tire series or brands because it is the most basic fitment checkpoint on this car. Width matters too, especially on the wider 275/35R19 rear fitment, so it helps to confirm the actual wheel dimensions if the car has aftermarket wheels or a wheel package that may differ from the original setup.
Why does the 2016 BMW 550i xDrive have more than one tire size?
More than one tire size appears on the 2016 BMW 550i xDrive because fitment changes with sub-model and wheel package. Some versions use 18-inch wheels with 245/45R18 tires, while 19-inch configurations use 245/40R19, and the staggered M Sport arrangement adds a wider 275/35R19 rear tire.
That variation means tire selection is not just about matching the year and model name. The car may have a square setup with the same size at all four corners or a staggered setup with different front and rear tires, so identifying the specific sub-model and checking the wheels already on the vehicle are both important before choosing replacements.
Choosing the Right Tire
What should I consider when choosing a 2016 BMW 550i xDrive tire?
Start with the correct size for the exact wheel package: 245/45R18, 245/40R19, or 275/35R19. From there, compare radial tire series, rim-width compatibility, load figures where stated, and whether the car uses a square or staggered arrangement that requires separate front and rear sizes.
This BMW's available choices are all blackwall performance-oriented radials, so the decision is less about appearance variety and more about matching the right dimensions and intended use. A car driven mostly on the street may be evaluated differently than one set up for a firmer sport feel, but the wheel diameter and axle position still need to stay correct first.
What brands offer tires for the 2016 BMW 550i xDrive?
BFGoodrich and Nitto both offer tires for the 2016 BMW 550i xDrive in the covered sizes. BFGoodrich appears across all three fitments in several g-Force series, while Nitto NT555 G2 options are available in 245/45R18 and 275/35R19.
Brand choice should still be filtered through size and wheel setup before anything else. A staggered M Sport car may use BFGoodrich or Nitto at the rear in 275/35R19, but the front size remains 245/40R19, so comparing by brand alone can miss the more important fitment question of whether the same product line is available for both axle positions.
What tire series are available for the 2016 BMW 550i xDrive?
The available tire series for the 2016 BMW 550i xDrive include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2. Availability varies by size, so not every series appears in every fitment used on the car.
That makes it useful to compare by the exact tire size first and then by series. Once the proper fitment is confirmed, the buyer can look at rim-width ranges, weight differences, and any stated load capacities to narrow the choices, especially on 19-inch applications where front and rear fitment may need to be handled separately.
Restoration & Appearance
Which tire should I choose for a period-style 2016 BMW 550i xDrive?
A period-appropriate starting point for a 2016 BMW 550i xDrive is simply the correct original-format size for the wheel package already on the car, whether that is 245/45R18, 245/40R19, or a staggered 245/40R19 and 275/35R19 setup. All of the available options are modern radial blackwall tires, which suits the car's era and design language.
For a more stock-looking presentation, keeping the factory-style size relationship matters more than chasing unusual appearance details. The cleanest result usually comes from matching the correct diameter and maintaining the intended square or staggered arrangement, while brand and tire series can then be chosen around driving use and wheel compatibility.
Does correct tire fitment matter for a 2016 BMW 550i xDrive restoration?
Correct tire fitment matters on a 2016 BMW 550i xDrive because the visual stance and the overall wheel-to-tire proportion depend on using the right size for the actual trim and wheel package. This car can appear on either 18-inch or 19-inch fitments, and some M Sport applications use a wider rear tire than the front.
A restoration-minded owner should treat tire size as part of the vehicle's finished presentation, not just a maintenance item. Keeping the proper front and rear relationship helps preserve the intended look, and any change in wheel design, offset, or tire profile should be checked carefully so the car does not end up with a mismatched or overly altered appearance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2016 BMW 550i xDrive?
Yes, modifications can affect tire fitment on a 2016 BMW 550i xDrive even when the tire size appears correct on paper. Aftermarket wheels, changes in wheel width or offset, suspension lowering, and body or brake-package changes can all alter how 245/45R18, 245/40R19, or 275/35R19 tires sit in the car.
That is especially important on staggered 19-inch setups, where front and rear clearances are already different by design. Any modified car should have wheel diameter, wheel width, offset, and steering or fender clearance checked before replacement tires are chosen, rather than assuming a stock-size tire will behave the same way on a non-stock setup.
What should I inspect before driving a 2016 BMW 550i xDrive on new tires?
Before driving a 2016 BMW 550i xDrive on new tires, inspect the wheel size, verify that the correct tire size is mounted at each position, and confirm that the tires are inflated properly for the vehicle's requirements. It also helps to look for any interference around the fenders, suspension components, and steering travel.
A quick road-use check should include lug torque, visible sidewall condition, and whether the car tracks evenly once the tires are installed. On a staggered setup, confirm that the wider rear tires are mounted only at the rear and that rotation expectations match the tire arrangement already on the car.
How often should tires on a 2016 BMW 550i xDrive be inspected?
Tires on a 2016 BMW 550i xDrive should be inspected regularly, not just when tread looks low. Routine checks should cover pressure, tread wear pattern, cuts, punctures, bulges, and any sidewall damage, especially on lower-profile 19-inch fitments that can be more vulnerable to road impacts.
It is smart to inspect them before longer trips and any time the car develops vibration, pulling, or uneven handling. Cars that see limited seasonal use still need attention, because age, storage conditions, and slow air loss can affect tire condition even when mileage stays low and the tread still appears serviceable.
