The 2015 BMW 750i sits in the modern luxury-sedan world where high-speed composure, quiet cruising, and strong road presence all matter. In this generation, tire selection is closely tied to wheel package and trim configuration rather than a one-size-fits-all approach. The 2015 BMW 750i uses radial tires in several metric sizes, including 18-inch, 19-inch, and staggered 20-inch fitments. Available choices range from blackwall performance-oriented lines to Pro-Trac Street Pro III options with raised white letter or redline styling in certain sizes. The key step is matching the exact sub-model and wheel setup before comparing series, sidewall appearance, and intended use.
Which Tire Size Is Right for The 2015 BMW 750i
The 2015 BMW 750i uses five primary tire sizes, and the correct one depends on the exact sub-model and wheel package. Fitment varies across 18-inch, 19-inch, and 20-inch rims, including a staggered front-and-rear setup on M Sport configurations. Before selecting a tire, confirm whether the car is Base or M Sport and verify the wheel diameter already on the vehicle.
245/45R19 is a metric radial size in which 245 identifies the nominal section width in millimeters, 45 is the aspect ratio, R designates radial construction, and 19 is the wheel diameter in inches. On the 2015 BMW 750i, this size is part of the primary fitment range and appears on 19-inch wheel applications, including Base and M Sport use. Available choices include BFGoodrich and Nitto blackwall tires across g-Force and NT555 G2 series. This size is worth close attention if the car already wears 19-inch wheels and the goal is to stay with a modern, performance-oriented radial format.
245/50R18 is a metric radial size with a 245-millimeter nominal section width, a 50-series profile, and an 18-inch rim diameter. For the 2015 BMW 750i, this size belongs to 18-inch Base-model fitment rather than the full model range. Product choices in this size include Pro-Trac Street Pro III tires with either raised white letter or redline sidewall treatment, giving it a more appearance-driven selection path than some of the blackwall performance sizes. It is the right size to evaluate when the car retains its 18-inch wheel package and sidewall presentation is part of the decision.
245/40R20 is a metric radial size that uses a 245-millimeter nominal width, a lower 40-series profile, and a 20-inch wheel diameter. On the 2015 BMW 750i, this size serves as a front fitment on 20-inch M Sport applications rather than a universal all-around size. Available options include BFGoodrich, Nitto, and Pro-Trac, with blackwall, raised white letter, and redline treatments depending on the tire series. This is the size to inspect carefully when confirming the front half of a staggered M Sport setup, especially if the car has aftermarket wheel changes.
275/35R20 is a metric radial size with a wider 275-millimeter nominal section width, a 35-series profile, and a 20-inch rim diameter. On the 2015 BMW 750i, it functions as the rear partner to the 245/40R20 front size on staggered 20-inch M Sport configurations. Buyers can compare BFGoodrich, Nitto, and Pro-Trac offerings, with blackwall choices alongside raised white letter and redline versions in the Street Pro III line. This size matters most when the car needs the correct rear fitment to preserve the intended staggered relationship between front and rear wheel positions.
275/40R19 is a metric radial size in which 275 marks the nominal width in millimeters, 40 is the aspect ratio, and 19 is the wheel diameter. For the 2015 BMW 750i, this size is used as a rear fitment on 19-inch M Sport applications, pairing with a narrower front tire rather than serving every configuration. BFGoodrich and Nitto options are available in blackwall form across g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 series. It should be selected only after confirming that the car uses the 19-inch staggered M Sport arrangement.
Sub-model fitment on the 2015 BMW 750i is not uniform, because Base and M Sport versions use different wheel and tire combinations. Checking the exact sub-model matters first, and on M Sport cars it is also important to confirm whether the tire being replaced is for the front or rear axle.
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2015 BMW 750i Base
The 2015 BMW 750i Base uses two radial fitment paths, one on 18-inch wheels and one on 19-inch wheels. Tire selection starts with confirming the wheel diameter on the car, then comparing the available sidewall styles and tire series that match that setup.
The 2015 BMW 750i M Sport uses a 245/45R19 radial fitment in this configuration. That makes the tire decision more about choosing among the available blackwall performance-oriented products than sorting through multiple primary sizes.
The 2015 BMW 750i M Sport Front fitment can be either 245/40R20 or 245/45R19, depending on the wheel package. Front-tire selection should begin with wheel confirmation, then move to the desired balance of series, sidewall appearance, and compatibility with the car's matching rear setup.
The 2015 BMW 750i M Sport Rear fitment uses either 275/35R20 or 275/40R19, depending on whether the car has 20-inch or 19-inch staggered wheels. Rear tire choice should preserve the correct wheel diameter and pairing with the matching front size already on 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 2015 BMW 750i Tires for Sale
Available 2015 BMW 750i tires span 18-inch, 19-inch, and 20-inch radial sizes from BFGoodrich, Nitto, and Pro-Trac. Depending on size, the product grid includes blackwall performance series as well as Street Pro III options with raised white letter or redline sidewall styling.
The questions below focus on 2015 BMW 750i tire size selection, wheel-diameter differences, M Sport front and rear fitment, available product styles, and the maintenance checks that matter before regular road use.
Tire Size & Fitment
What tire size fits a 2015 BMW 750i?
The 2015 BMW 750i uses several radial tire sizes: 245/50R18, 245/45R19, 245/40R20, 275/40R19, and 275/35R20. The correct size depends on the exact sub-model and wheel package, with Base cars using either 18-inch or 19-inch fitment and M Sport applications using 19-inch or staggered 20-inch combinations.
Choosing correctly starts with identifying the car as Base or M Sport, then verifying the wheel diameter already installed. On staggered setups, the front and rear tires are not the same size, so replacement should match the axle position as well as the wheel size.
What size rim does a 2015 BMW 750i use?
The 2015 BMW 750i uses 18-inch, 19-inch, and 20-inch rim diameters depending on configuration. The 245/50R18 size fits an 18-inch wheel, 245/45R19 and 275/40R19 fit 19-inch wheels, and 245/40R20 plus 275/35R20 fit 20-inch wheels.
Wheel diameter should be confirmed before anything else because the tire sizes are not interchangeable across those rims. Looking at the tire sidewall and the actual wheel setup on the car is especially important if the 750i has had wheel upgrades or previous-owner changes.
Why does the 2015 BMW 750i have more than one tire size?
The 2015 BMW 750i has more than one tire size because fitment changes with sub-model and wheel package. Base versions can use either 18-inch or 19-inch tires, while M Sport configurations use 19-inch fitment or a staggered arrangement with narrower front and wider rear tires on 20-inch wheels.
That means the right choice is tied to how the specific car is equipped, not just the model name on the trunk. Confirming trim level, wheel diameter, and whether the car uses the same size all around or a front-and-rear stagger is the safest starting point.
Choosing the Right Tire
What should I consider when choosing a 2015 BMW 750i tire?
Start with the correct size for the exact 2015 BMW 750i configuration, since this model uses multiple rim diameters and may have a staggered setup. After size is confirmed, compare radial construction details, tire series, sidewall style, and any rim-width or load information that applies to the specific product.
A Base model on 18-inch wheels calls for a different approach than an M Sport rear tire on a 20-inch wheel. It also helps to think about the car's intended use, whether that means a subdued blackwall appearance or a more distinctive redline or raised white letter presentation.
What sidewall styles are available for 2015 BMW 750i tires?
Sidewall style depends on tire size. Blackwall options appear across the 19-inch and 20-inch performance-oriented sizes, while the Pro-Trac Street Pro III line adds raised white letter and redline choices in 245/50R18, 245/40R20, and 275/35R20.
That gives the 2015 BMW 750i owner a clear appearance decision once the correct size is established. A blackwall tire keeps the presentation understated, while redline or raised white letter styling creates a more customized look that still needs to match the wheel diameter and axle position.
What brands offer tires for the 2015 BMW 750i?
Tires for the 2015 BMW 750i are available from BFGoodrich, Nitto, and Pro-Trac, depending on size. The assortment includes BFGoodrich g-Force lines, Nitto NT555 G2, and Pro-Trac Street Pro III, so the available brand mix changes somewhat across the different wheel diameters and fitment positions.
Brand selection should come after confirming the exact tire size on the vehicle. Once that is done, compare the available series, sidewall treatments, and specifications within that size rather than trying to choose a brand first and forcing the fitment second.
Restoration & Appearance
Which tire should I choose for a period-style 2015 BMW 750i?
A period-style 2015 BMW 750i tire choice still begins with the exact factory-type size relationship for the car's wheel package, since this model uses modern metric radial fitments rather than vintage sizing. After that, the visual decision usually comes down to a clean blackwall look or selected sizes with a more expressive sidewall treatment.
Blackwall tires generally preserve the restrained luxury-sedan appearance many owners want from this generation. Redline or raised white letter options are available in certain sizes and create a custom presentation, so the better choice depends on whether the goal is original-looking restraint or a personalized visual statement.
How does tire construction affect the appearance of a restored 2015 BMW 750i?
On a 2015 BMW 750i, construction is straightforward because the primary fitments are radial across all listed sizes. That means appearance differences come less from bias-ply versus radial shape and more from the chosen size, wheel diameter, tire series, and whether the sidewall is blackwall, redline, or raised white letter.
For an owner trying to keep the car visually in character, matching the correct wheel package matters as much as the tire itself. The overall look changes quickly if a staggered M Sport setup is replaced with mismatched sizes or if a sidewall treatment is chosen that does not suit the car's intended presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2015 BMW 750i?
Yes. Modifications such as aftermarket wheels, suspension changes, lowering, or altered wheel offsets can affect tire fitment on a 2015 BMW 750i even when the tire size sounds close to stock. This matters even more on M Sport cars that may use staggered front and rear sizes on either 19-inch or 20-inch wheels.
A modified car should be checked for actual wheel diameter, wheel width, and clearance at steering lock and suspension travel before replacement tires are chosen. Matching the printed sidewall size alone is not enough if the wheels or ride height have been changed from the original setup.
What should I inspect before driving a 2015 BMW 750i on new tires?
Before driving a 2015 BMW 750i on new tires, inspect wheel condition, valve stems, inflation pressure, and the basic match between the tire size and the axle position. It also helps to confirm that front and rear tires are installed in the correct locations on staggered M Sport setups.
A short visual check after installation can prevent avoidable problems. Look for sidewall rubbing, uneven clearance, unusual bulges, or signs that the tire does not seat or track correctly, then keep an eye on pressure retention and general behavior during the first miles of road use.
What should I check before a longer drive in a 2015 BMW 750i?
Before a longer drive, check inflation pressure, tread condition, and the age-related health of the tires already on the 2015 BMW 750i. Even a car that is driven occasionally can develop sidewall cracking, flat spotting, air loss, or other condition issues that are easy to miss during short local use.
Longer trips also make it worth confirming that all four tires match the intended setup for the car, especially on staggered M Sport applications. A final walkaround for cuts, bulges, and visible clearance problems is a smart step before highway-speed driving or extended touring.
