The 2015 BMW 750Li xDrive sits in the modern full-size luxury sedan category with the long-wheelbase presence and all-wheel-drive confidence buyers expect from a flagship 7 Series. It balances executive comfort with the sharper road manners that define BMW’s larger sedans, so tire fitment matters as much for stance and steering response as it does for day-to-day road use. This model uses radial tires only, but fitment varies across 18-, 19-, and 20-inch combinations depending on the exact version. That opens the door to different series, brands, and sidewall presentations. The key is matching the right size to the right sub-model and wheel setup before comparing tire style.
Which Tire Size Is Right for The 2015 BMW 750Li xDrive
The 2015 BMW 750Li xDrive uses five primary tire sizes, all in radial construction, and those sizes are tied to specific sub-model and wheel combinations. Some versions use a square setup, while M Sport Front and M Sport Rear fitments separate the front and rear sizes. The first step is confirming the exact sub-model and wheel diameter, since this vehicle uses 18-, 19-, and 20-inch rims.
245/45R19 is a metric radial size in which 245 identifies the nominal section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 19 is the rim diameter in inches. On the 2015 BMW 750Li xDrive, this size appears in 19-inch applications and is used on both Base and M Sport-related fitments. Available choices center on blackwall performance-oriented lines from BFGoodrich and Nitto, including g-Force and NT555 G2 series. This size is the right one to evaluate when the car carries a 19-inch wheel setup and calls for the narrower front-style fitment.
245/50R18 follows the same metric radial format, with a 245-millimeter nominal section width, a 50-series profile, and an 18-inch rim diameter. On the 2015 BMW 750Li xDrive, this size belongs to an 18-inch Base-model fitment rather than the sport-oriented staggered combinations. Product choice in this size includes Pro-Trac Street Pro III options with either raised white letter or redline sidewall treatment, giving it a more distinctive visual character than the blackwall-only sizes elsewhere in the range. This is the size to confirm when the car retains 18-inch wheels and the buyer wants to balance fitment accuracy with appearance preference.
245/40R20 is a metric radial size with a 245-millimeter nominal width, a lower 40-series profile, and a 20-inch rim diameter. On the 2015 BMW 750Li xDrive, it serves as a front-position size in the 20-inch M Sport configuration rather than a universal fitment across every version. Choices include blackwall performance lines from BFGoodrich and Nitto, along with Pro-Trac Street Pro III in RWL and redline forms. This size deserves close attention when the car uses 20-inch front wheels, since front axle fitment should be matched carefully to the corresponding rear size and wheel setup.
275/35R20 is a wider metric radial size, where 275 gives the nominal section width in millimeters, 35 is the aspect ratio, and 20 is the wheel diameter. On the 2015 BMW 750Li xDrive, this size is the rear-position partner for the 20-inch M Sport staggered arrangement and should not be treated as a front fitment. Available products include BFGoodrich, Nitto, and Pro-Trac offerings, with blackwall, raised white letter, and redline sidewall choices depending on the series. This is the size to verify when the car has 20-inch rear wheels and a staggered setup that uses a wider rear tire.
275/40R19 is another wider metric radial, combining a 275-millimeter nominal section width with a 40-series profile on a 19-inch rim. On the 2015 BMW 750Li xDrive, it fills the rear position for the 19-inch M Sport staggered setup rather than the standard square arrangements. The available choices are primarily blackwall performance tires from BFGoodrich and Nitto, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. Buyers should focus on this size when the car runs 19-inch rear wheels and needs the wider rear tire that matches the front fitment and wheel package.
Sub-model fitment on the 2015 BMW 750Li xDrive is not one-size-fits-all, because wheel diameter and front-to-rear tire arrangement change across the lineup. Identifying whether the car is a Base, M Sport, M Sport Front, or M Sport Rear configuration is the most important step before comparing tires.
1
2015 BMW 750Li xDrive Base
The Base version uses either an 18-inch or 19-inch radial fitment, so wheel diameter matters before any tire decision is made. Once the wheels are confirmed, the choice shifts toward sidewall appearance on the 18-inch size or blackwall performance-oriented options on the 19-inch size.
The M Sport version uses a 245/45R19 radial fitment, making the size question more straightforward than on mixed front-and-rear setups. Tire selection then comes down to choosing among the available blackwall performance series and verifying the car still carries the correct 19-inch wheel package.
The M Sport Front fitment uses either 245/40R20 or 245/45R19, depending on the wheel package on the car. Front tire selection should be made only after confirming wheel diameter and making sure the front size matches the intended rear setup on staggered applications.
The M Sport Rear fitment uses either 275/35R20 or 275/40R19, both of them wider rear radial sizes in staggered arrangements. Choosing the rear tire means confirming the actual rear wheel diameter and matching the tire correctly to the front fitment already on the car.
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 2015 BMW 750Li xDrive Tires for Sale
Available tires for the 2015 BMW 750Li xDrive include BFGoodrich, Nitto, and Pro-Trac choices across g-Force, NT555 G2, Street Pro III, and Phenom T/A series. Depending on size, buyers can compare blackwall, raised white letter, and redline sidewall treatments along with different rim-width specifications.
Owners of a 2015 BMW 750Li xDrive usually need clarity on exact tire size by sub-model, wheel diameter, staggered front-and-rear fitment, and the differences between the available brands, series, and sidewall styles. These FAQs focus on those decisions, plus maintenance and road-use checks.
Tire Size & Fitment
What tire size fits a 2015 BMW 750Li xDrive?
The 2015 BMW 750Li xDrive uses 245/50R18, 245/45R19, 245/40R20, 275/40R19, and 275/35R20, depending on the exact sub-model and wheel arrangement. All of these are radial sizes, and some versions use a square setup while others use staggered front and rear sizes.
The most important step is identifying the exact version of the car and confirming the wheel diameter already on it. A Base model can use either 18-inch or 19-inch fitment, while M Sport Front and M Sport Rear applications split the tire sizes by axle position, so the right choice depends on the actual setup on the vehicle.
What size rim does a 2015 BMW 750Li xDrive use?
A 2015 BMW 750Li xDrive uses 18-inch, 19-inch, or 20-inch rims, depending on the sub-model and tire package. The tire sizes tied to those wheel diameters are 245/50R18 for 18-inch fitment, 245/45R19 and 275/40R19 for 19-inch fitment, and 245/40R20 plus 275/35R20 for 20-inch fitment.
Wheel diameter should be confirmed before looking at brand or sidewall style, because the same model year does not use one universal rim size. It also helps to check whether the car has a square setup or a staggered front-and-rear arrangement, especially on M Sport applications where the front and rear tire sizes differ.
Why does the 2015 BMW 750Li xDrive have more than one tire size?
The 2015 BMW 750Li xDrive has more than one tire size because the lineup includes different wheel packages and sub-model-specific fitments. Base versions can use either 18-inch or 19-inch tires, while M Sport-related configurations can use 19-inch or 20-inch sizes and may separate front and rear fitments.
That means the right tire is determined by more than model name alone. Confirm the exact sub-model, then check the wheel diameter and whether the car uses the same size at all four corners or a staggered combination, since selecting only by year, make, and model can lead to choosing the wrong axle size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2015 BMW 750Li xDrive?
Start with the correct size for the exact sub-model and wheel package, since this BMW uses five different radial sizes across 18-, 19-, and 20-inch fitments. After size is confirmed, compare construction details such as rim-width compatibility, sidewall treatment, and the overall character of the tire series available in that size.
A square setup calls for consistency across all four positions, while a staggered setup requires the correct front and rear pairing. Buyers should also think about whether the goal is a blackwall performance presentation or a more distinctive RWL or redline look, since those appearance choices vary by size rather than across the whole model range.
What sidewall styles are available for 2015 BMW 750Li xDrive tires?
Sidewall style depends on tire size. Blackwall options are available across the 19-inch and 20-inch performance-oriented sizes, while the 245/50R18, 245/40R20, and 275/35R20 selections also include Pro-Trac Street Pro III versions with raised white letter or redline sidewalls.
That makes sidewall choice part of the buying decision, not just a cosmetic afterthought. A blackwall tire keeps a more understated modern appearance, while RWL and redline versions add a more noticeable visual accent, so the right choice depends on the wheel package already on the car and the look the owner wants to preserve.
What brands offer tires for the 2015 BMW 750Li xDrive?
Tires for the 2015 BMW 750Li xDrive are available from BFGoodrich, Nitto, and Pro-Trac, depending on the size. BFGoodrich appears across several g-Force and Phenom T/A lines, Nitto offers NT555 G2 choices in several sizes, and Pro-Trac supplies Street Pro III options in selected 18-inch and 20-inch fitments.
Brand comparison matters most after the correct size is locked in, because the same brand mix does not appear in every fitment. Some sizes focus on blackwall performance lines, while others add RWL or redline alternatives, so buyers should compare each brand within the specific size that matches the car’s wheel and axle arrangement.
Restoration & Appearance
Which tire should I choose for a period-style 2015 BMW 750Li xDrive?
A period-style choice for a 2015 BMW 750Li xDrive starts with the exact size used by the car’s wheel package, then narrows to the sidewall and series that best suit the look you want. Blackwall fitments keep a clean late-model luxury-sedan presentation, while selected sizes also open the door to RWL or redline alternatives.
Because this is a modern luxury performance sedan rather than an earlier restoration-era car, appearance usually depends more on wheel and sidewall presentation than on vintage construction choice. Matching the existing wheel diameter and, on staggered setups, keeping the proper front-to-rear relationship will preserve the overall stance more effectively than chasing a style alone.
How does tire choice affect the appearance of a 2015 BMW 750Li xDrive?
Tire choice changes the visual character of a 2015 BMW 750Li xDrive through sidewall style, profile, and whether the car keeps its intended wheel package. Blackwall tires give the car a restrained, contemporary look, while raised white letter and redline options create a much more noticeable sidewall treatment on the sizes where they are available.
Appearance also depends on maintaining the correct front and rear proportions. A staggered M Sport setup looks different from a square arrangement, so preserving the correct size relationship is part of preserving the car’s visual balance. Checking the actual wheels on the car is the best way to avoid a mismatch that changes both fitment and stance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2015 BMW 750Li xDrive?
Yes, modifications can affect tire fitment on a 2015 BMW 750Li xDrive. Aftermarket wheels, changes in wheel width, altered offset, suspension lowering, or body modifications can all change how a 245/50R18, 245/45R19, 245/40R20, 275/40R19, or 275/35R20 tire sits in the wheelwell.
That matters even when the tire size itself is correct for the model family. A modified car should be checked for steering clearance, inner-fender space, and front-to-rear stagger compatibility before replacing tires, since the original fitment logic assumes the intended wheel package and chassis setup remain in place.
What should I inspect before driving a 2015 BMW 750Li xDrive on new tires?
Before driving a 2015 BMW 750Li xDrive on new tires, inspect the wheels for the correct diameter and condition, confirm the tires are mounted in the proper front or rear positions, and check inflation pressure carefully. It also helps to look over the suspension and alignment-related wear points if the previous tires showed uneven wear.
A short clearance check is worthwhile on any car that may have changed wheels or suspension settings over time. After the first miles, recheck pressure and look for rubbing, vibration, or unusual wear patterns, since those signs can reveal an axle-position mix-up, a wheel mismatch, or a setup issue unrelated to the tire itself.
How often should tires on a 2015 BMW 750Li xDrive be inspected?
Tires on a 2015 BMW 750Li xDrive should be inspected regularly for pressure loss, tread condition, cuts, bulges, and sidewall damage, especially because this model may use wider rear tires and lower-profile fitments. Regular checks matter whether the car is driven daily or only occasionally, since time and storage conditions also affect tire condition.
A quick visual inspection before longer drives is a sensible habit, and any car that sits for extended periods deserves extra attention to air loss and age-related deterioration. Uneven wear can also point to alignment, suspension, or wheel-position issues, which is important on vehicles using staggered front-and-rear tire combinations.
