The 2018 BMW 740e xDrive blends the long-wheelbase luxury and technology expected of a modern 7 Series with plug-in hybrid power and all-wheel-drive confidence. Buyers looking at tires for this exact sedan are usually balancing ride quality, appearance, and correct fitment across more than one wheel setup. This model uses radial tires in 245/50R18, 245/45R19, and 275/40R19 sizes, so the first step is confirming whether the car is on its 18-inch setup or staggered 19-inch arrangement. Available choices include blackwall, raised white letter, and redline styles across several radial tire lines. Getting the right combination means matching the car's actual wheel configuration before comparing tire character and presentation.
Which Tire Size Is Right for The 2018 BMW 740e xDrive
Three primary tire sizes apply to the 2018 BMW 740e xDrive, and they are tied to two different wheel diameters. Some versions use a single 245/50R18 fitment, while the 19-inch setup uses 245/45R19 at the front and 275/40R19 at the rear. Before choosing a tire, confirm whether the car has 18-inch wheels or a staggered 19-inch front-and-rear arrangement.
245/45R19 is a metric radial size in which 245 identifies nominal section width in millimeters, 45 is the aspect ratio, R denotes radial construction, and 19 is the wheel diameter in inches. On the 2018 BMW 740e xDrive, this size is part of the 19-inch fitment and is used on the front position in the staggered setup. Available choices in this size come from BFGoodrich and Nitto, with blackwall sidewalls and tire series such as g-Force Comp 2 AS, Nitto NT555 G2, and g-Force Phenom T/A. It is the right size to evaluate when the car has 19-inch front wheels and the owner wants to stay with the intended staggered arrangement.
245/50R18 is a metric radial size that uses a 245-millimeter nominal section width, a 50-series profile, and an 18-inch wheel diameter. On the 2018 BMW 740e xDrive, this size belongs to the 18-inch wheel setup rather than the staggered 19-inch arrangement. Product choices here center on Pro-Trac Street Pro III tires, with appearance differences including raised white letter and redline sidewalls. This is the size to focus on when the car is equipped with 18-inch wheels and the goal is to keep the fitment matched to that wheel diameter while selecting the preferred look.
275/40R19 is a wider metric radial size, with 275 indicating nominal section width in millimeters, 40 showing the aspect ratio, and 19 identifying the wheel diameter. For the 2018 BMW 740e xDrive, this size is used on the rear position when the car has the staggered 19-inch setup. BFGoodrich and Nitto both appear in this size, all in blackwall form, with series including g-Force Sport Comp 2, g-Force Comp 2 AS, Nitto NT555 G2, and g-Force Phenom T/A. It should be considered alongside the matching 245/45R19 front size so the 19-inch front-to-rear tire relationship stays intact.
Sub-model fitment matters on the 2018 BMW 740e xDrive because the covered configurations include both a single-size setup and a staggered front-and-rear arrangement. Checking the exact sub-model or wheel position prevents mixing 18-inch and 19-inch fitments or confusing the front and rear 19-inch sizes.
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2018 BMW 740e xDrive iPerformance
The 2018 BMW 740e xDrive iPerformance is associated with both 245/50R18 and 245/45R19 radial fitments, which means wheel diameter must be confirmed before any tire is selected. Tire choice here starts with identifying the car's actual wheel setup and then comparing the available sidewall and series options within the correct size.
The 2018 BMW 740e xDrive iPerformance Front uses the 245/45R19 radial size as part of the 19-inch staggered arrangement. That makes front-position confirmation especially important, since this size should be matched with the proper rear fitment rather than treated as a stand-alone all-around setup.
The 2018 BMW 740e xDrive iPerformance Rear uses the wider 275/40R19 radial tire on the 19-inch staggered setup. Rear tire selection should be made with the matching 245/45R19 front size in mind so the vehicle retains the intended front-to-rear fitment balance.
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 2018 BMW 740e xDrive Tires for Sale
Available 2018 BMW 740e xDrive tire choices span BFGoodrich, Nitto, and Pro-Trac, with differences in tire series, blackwall versus raised white letter or redline sidewalls, and wheel-fitment specs tied to the 18-inch and 19-inch sizes.
These FAQs focus on the exact tire sizes used on the 2018 BMW 740e xDrive, how the 18-inch and staggered 19-inch setups differ, and what to check when comparing brands, sidewall styles, and wheel fitment.
Tire Size & Fitment
What tire size fits a 2018 BMW 740e xDrive?
The 2018 BMW 740e xDrive uses three radial tire sizes across its covered configurations: 245/50R18, 245/45R19, and 275/40R19. The 18-inch setup uses 245/50R18, while the 19-inch arrangement uses 245/45R19 at the front and 275/40R19 at the rear.
Selecting the right one starts with checking the actual wheels on the car, not just the model name. A 740e xDrive with 18-inch wheels does not use the same tire package as one with the staggered 19-inch setup, and the front and rear 19-inch sizes should not be confused with each other.
What size rim does a 2018 BMW 740e xDrive use?
The 2018 BMW 740e xDrive uses either 18-inch or 19-inch rims, depending on the tire setup. The 245/50R18 size belongs on an 18-inch wheel, while both 245/45R19 and 275/40R19 are designed for 19-inch wheels.
Wheel diameter is the first thing to verify before comparing tires, especially on this model because both diameters appear under the same year, make, and model. On cars with 19-inch wheels, the fitment can also be staggered, so confirming front and rear wheel positions helps prevent ordering the right diameter in the wrong size.
Why does the 2018 BMW 740e xDrive have more than one tire size?
More than one tire size appears because the 2018 BMW 740e xDrive was fitted with different wheel setups. One arrangement uses 245/50R18, while another uses a staggered 19-inch combination with 245/45R19 in front and 275/40R19 in the rear.
That means the correct tire choice depends on the wheels actually installed on the car and, with the 19-inch package, the axle position as well. Checking the current tire sidewall, measuring wheel diameter, and confirming whether the vehicle has a square or staggered setup are the quickest ways to avoid a mismatch.
Choosing the Right Tire
What should I consider when choosing a tire for a 2018 BMW 740e xDrive?
Start with the correct size and wheel diameter for the car's actual setup: 245/50R18 for the 18-inch fitment, or 245/45R19 front and 275/40R19 rear for the 19-inch staggered arrangement. From there, compare radial tire series, sidewall style, rim-width compatibility where stated, and any load information that appears on the product.
The best comparison is not just between brands, but between the way each tire fits the car's intended use and presentation. Some owners want a straightforward blackwall performance-style look, while others may prefer raised white letter or redline styling on the 18-inch size, so matching appearance and wheel setup matters.
What sidewall styles are available for 2018 BMW 740e xDrive tires?
Sidewall style varies by size on the 2018 BMW 740e xDrive. The 19-inch sizes, 245/45R19 and 275/40R19, are available in blackwall form, while the 245/50R18 size is available with raised white letter and redline sidewall treatments.
That makes sidewall appearance part of the decision once the correct wheel diameter is confirmed. A buyer looking for a more understated modern look may stay with blackwall options, while someone using the 18-inch size has more visible styling choice without changing the underlying tire size.
What brands offer tires for the 2018 BMW 740e xDrive?
Tires for the 2018 BMW 740e xDrive are available from BFGoodrich, Nitto, and Pro-Trac. BFGoodrich and Nitto appear in the 19-inch sizes, while Pro-Trac appears in the 245/50R18 size through the Street Pro III series.
Brand choice should still be filtered through the correct size and wheel setup first, since not every brand appears in every fitment. After that, compare the tire series and sidewall presentation offered within the size your car uses, especially if maintaining a matched front-and-rear 19-inch combination is part of the plan.
Restoration & Appearance
Which tire should I choose for a period-style 2018 BMW 740e xDrive?
A period-style choice for a 2018 BMW 740e xDrive starts with keeping the car on its proper wheel and tire size configuration. That means using 245/50R18 on the 18-inch setup or the 245/45R19 front and 275/40R19 rear combination on the staggered 19-inch arrangement.
Appearance then comes down to the visual character of the available tires rather than trying to force a vintage treatment onto a modern luxury sedan. Blackwall options suit the contemporary factory-inspired look of the 19-inch sizes, while the 18-inch size offers more visible sidewall styling for an owner who wants a custom presentation.
How does tire construction affect the appearance of a restored 2018 BMW 740e xDrive?
Tire construction is straightforward on the 2018 BMW 740e xDrive because the primary fitments are all radial. The visible appearance difference here comes less from bias-ply versus radial choice and more from the tire's sidewall treatment, tread character, and whether the car sits on 18-inch wheels or a staggered 19-inch setup.
For an owner refreshing the car's presentation, preserving the intended size relationship usually matters more than chasing unusual construction changes. Keeping the correct front and rear sizes on a 19-inch car, or staying with the proper 18-inch fitment, helps the finished look stay coherent with the sedan's original design language.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 BMW 740e xDrive?
Yes. Wheel changes, suspension lowering, aftermarket offsets, and other modifications can affect tire fitment on a 2018 BMW 740e xDrive even when the tire size itself looks close to stock. That is especially important on this model because both 18-inch and staggered 19-inch combinations are used.
A modified car should be checked for wheel diameter, width, and clearance at both the front and rear before new tires are chosen. On a staggered 19-inch setup, maintaining the correct 245/45R19 front and 275/40R19 rear relationship also matters, since changing one end can alter the overall fitment balance.
What should I inspect before driving a 2018 BMW 740e xDrive on new tires?
Before road use, inspect the wheels for the correct diameter, confirm that each tire size matches its intended position, and check that inflation, valve stems, and mounting condition are all in order. It also helps to look over the suspension and steering for any signs of wear that could affect how the new tires behave.
A short clearance check is worthwhile, particularly if the car has 19-inch front and rear sizes or any aftermarket wheel changes. After the first drives, recheck pressure and make sure there is no rubbing, vibration, or unusual wear pattern, since those early signs often reveal a fitment issue before it becomes a larger problem.
How often should tires on a 2018 BMW 740e xDrive be inspected?
Tires on a 2018 BMW 740e xDrive should be inspected regularly, with a quick check before routine driving and a closer inspection before longer trips. Look for pressure loss, uneven tread wear, cuts, bulges, and any sidewall damage, paying special attention to front and rear differences on a staggered 19-inch setup.
Cars that are driven infrequently still need attention because age and storage conditions can affect tire condition even when tread looks good. A monthly inspection rhythm works well for many owners, and it is smart to look even closer after seasonal storage, curb contact, or any suspension work that could change alignment or clearance.
