The 2017 BMW Alpina B6 xDrive Gran Coupe blends the sleek four-door profile of BMW’s 6 Series Gran Coupe with Alpina’s tradition of high-speed grand touring refinement. It is a modern performance sedan that depends on low-profile radial fitment to deliver the steering response, stance, and road manners expected of an Alpina-tuned car. Tire selection centers on three metric radial sizes: 245/40R19, 245/35R20, and 275/30R20, with 20-inch front and rear fitment creating the most important distinction. Available choices focus on blackwall performance radials from BFGoodrich and Nitto, so the main task is matching the correct wheel setup and intended driving use before selecting a tire.
Which Tire Size Is Right for The 2017 BMW Alpina B6 xDrive Gran Coupe
The 2017 BMW Alpina B6 xDrive Gran Coupe uses three primary tire sizes, and the right one depends first on confirming whether the car is on its 19-inch setup or its 20-inch front and rear arrangement. Because the 20-inch fitment splits into different front and rear sizes, identifying the exact wheel position matters just as much as confirming the rim diameter before choosing a tire.
275/30R20 is a metric radial size where 275 denotes the nominal section width in millimeters, 30 is the aspect ratio, R marks radial construction, and 20 is the wheel diameter in inches. For the 2017 BMW Alpina B6 xDrive Gran Coupe, this size belongs to the rear position on the 20-inch arrangement and works alongside a narrower 245/35R20 front tire. The available product choice in this size is a blackwall Nitto NT555 G2 radial, giving the rear fitment a focused performance-oriented option. This is the rear size to verify when maintaining a staggered 20-inch setup and preserving the vehicle’s intended front-to-rear tire relationship.
2017 BMW Alpina B6 xDrive Gran Coupe Sub-Model Tires
Fitment varies across the covered 2017 BMW Alpina B6 xDrive Gran Coupe sub-model entries because one uses a 19-inch size while the 20-inch setup is split into separate front and rear sizes. Checking the exact sub-model description is important before selecting a tire, especially on cars with staggered wheel arrangements.
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2017 BMW Alpina B6 xDrive Gran Coupe Base
The 2017 BMW Alpina B6 xDrive Gran Coupe Base uses a single radial tire size tied to its 19-inch wheel setup. Tire selection here is mainly about staying with the correct 19-inch fitment and comparing blackwall performance-radial options within that size.
The 2017 BMW Alpina B6 xDrive Gran Coupe Base Front uses the front radial size from the 20-inch staggered arrangement. Choosing for this position means confirming the wheel is part of the 20-inch setup and matching the front tire to the correct rear companion size.
The 2017 BMW Alpina B6 xDrive Gran Coupe Base Rear uses the wider rear radial size from the 20-inch staggered configuration. Tire choice at the rear should preserve the intended staggered layout and start with confirming the actual rear wheel diameter and tire position 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 2017 BMW Alpina B6 xDrive Gran Coupe Tires for Sale
Available choices for the 2017 BMW Alpina B6 xDrive Gran Coupe focus on blackwall radial performance tires from BFGoodrich and Nitto. Depending on size, the product grid includes g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 series, with some fitments also showing rim-width guidance.
Common questions for the 2017 BMW Alpina B6 xDrive Gran Coupe usually center on identifying the correct front, rear, or 19-inch tire size, understanding the staggered 20-inch setup, and comparing available radial tire choices for fitment, appearance, and road use.
Tire Size & Fitment
What tire size fits a 2017 BMW Alpina B6 xDrive Gran Coupe?
The 2017 BMW Alpina B6 xDrive Gran Coupe uses three primary tire sizes: 245/40R19, 245/35R20, and 275/30R20. The 245/40R19 size applies to the 19-inch setup, while the 20-inch arrangement uses a staggered combination with 245/35R20 in front and 275/30R20 in the rear.
The practical step is to confirm whether the car is running 19-inch wheels or the 20-inch staggered setup before choosing a tire. On 20-inch cars, front and rear sizes are not interchangeable, so wheel position matters as much as size. Any car with aftermarket wheels or previous tire changes should be checked carefully before replacement.
What size rim does a 2017 BMW Alpina B6 xDrive Gran Coupe use?
The 2017 BMW Alpina B6 xDrive Gran Coupe uses both 19-inch and 20-inch rim diameters, depending on the tire size and setup. The 245/40R19 size mounts on a 19-inch rim, while the 245/35R20 front and 275/30R20 rear sizes are both built for 20-inch rims.
Confirming actual wheel diameter is the first fitment check because a 19-inch tire cannot be used on a 20-inch wheel, and a 20-inch tire cannot be used on a 19-inch wheel. On a staggered setup, front and rear widths differ as well, so it helps to inspect each axle separately rather than assuming all four wheels match.
Why does the 2017 BMW Alpina B6 xDrive Gran Coupe have more than one tire size?
More than one tire size appears because this model can be encountered with either a 19-inch fitment or a 20-inch staggered arrangement. In the staggered setup, the front uses 245/35R20 and the rear uses 275/30R20, while the 19-inch setup uses 245/40R19.
That means the correct replacement depends on the wheel package actually on the car, not just the model name. A staggered performance setup uses different front and rear sizes for a reason, so replacing by appearance alone can create mismatches. Reading the sidewall and confirming wheel diameter on each position is the safest way to start.
Choosing the Right Tire
What should I consider when choosing a tire for a 2017 BMW Alpina B6 xDrive Gran Coupe?
Start with the exact tire size and wheel position. This model uses radial construction throughout, but it may have a 19-inch setup with 245/40R19 or a 20-inch staggered setup with 245/35R20 in front and 275/30R20 in the rear, so selection begins with matching the car’s actual wheel package.
After size is confirmed, compare the available tire series, brand, sidewall style, and any rim-width guidance tied to that fitment. BFGoodrich and Nitto both appear in the 20-inch range, while the 19-inch size centers on BFGoodrich choices. Intended use also matters, especially if the car is driven regularly versus kept mainly for occasional fair-weather use.
What sidewall styles are available for 2017 BMW Alpina B6 xDrive Gran Coupe tires?
The available tires for the 2017 BMW Alpina B6 xDrive Gran Coupe use a blackwall sidewall style across the covered fitments. That applies to the 245/40R19 size as well as the 245/35R20 front and 275/30R20 rear sizes, giving the car a modern performance-oriented presentation.
Since sidewall treatment does not vary here, the real comparison shifts to tire series, brand, and the correct placement on the car. On a 20-inch staggered setup, maintaining the proper front and rear sizing matters far more than sidewall appearance. Owners focused on a consistent look should still confirm that all four tires match the intended setup.
What brands offer tires for the 2017 BMW Alpina B6 xDrive Gran Coupe?
BFGoodrich and Nitto both offer tires for the 2017 BMW Alpina B6 xDrive Gran Coupe within the covered fitments. BFGoodrich appears in the 245/40R19 and 245/35R20 sizes with several g-Force series, while Nitto appears in the 245/35R20 and 275/30R20 sizes with the NT555 G2 series.
Brand choice should come after confirming the correct size, axle position, and wheel diameter. The available lineup is not the same across all three sizes, so a buyer with a 20-inch staggered setup may need one brand or series at one end of the car and a different availability picture at the other. Matching fitment always comes first.
Restoration & Appearance
Which tire should I choose for a period-style 2017 BMW Alpina B6 xDrive Gran Coupe?
A period-style approach on a 2017 BMW Alpina B6 xDrive Gran Coupe usually means staying with the size and wheel configuration already intended for the car, whether that is 245/40R19 or the staggered 245/35R20 and 275/30R20 combination. Since all available options are blackwall radials, the visual character remains modern rather than vintage-inspired.
The best appearance result comes from preserving the correct front-to-rear relationship and avoiding mismatched profiles or diameters. Tire series can still influence the overall presentation, but size accuracy is the foundation. For buyers pursuing a highly exact Alpina-era presentation, original vehicle literature and marque-specific references are worth checking alongside tire selection.
Does correct tire fitment matter for a 2017 BMW Alpina B6 xDrive Gran Coupe restoration?
Correct tire fitment matters because this car’s stance and appearance depend heavily on the proper low-profile radial sizing. A 2017 BMW Alpina B6 xDrive Gran Coupe looks noticeably different when the 19-inch fitment is confused with the 20-inch staggered arrangement or when front and rear 20-inch sizes are mixed incorrectly.
Appearance is only part of the issue. The right fitment also helps preserve intended wheel-to-tire proportion and avoids avoidable clearance or setup problems. Anyone refreshing a collector-quality example should inspect the existing wheels carefully, confirm the actual tire sizes at each position, and replace in kind unless a deliberate wheel and tire change is being planned.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 BMW Alpina B6 xDrive Gran Coupe?
Yes, modifications can affect tire fitment on a 2017 BMW Alpina B6 xDrive Gran Coupe. Aftermarket wheels, altered offsets, suspension changes, lowering, or previous size substitutions can all change how a 245/40R19, 245/35R20, or 275/30R20 tire sits in the wheel well and how much clearance is available.
That matters most on the staggered 20-inch setup, where front and rear sizes already serve different roles. A car that has been modified should be checked for wheel diameter, wheel width, steering clearance, and fender clearance before replacement tires are chosen. Reading the current sidewall alone may not tell the whole story if the setup has been changed before.
What should I inspect before driving a 2017 BMW Alpina B6 xDrive Gran Coupe on new tires?
Before road use, inspect tire pressure, sidewall condition, tread surface, and valve stems, and confirm that each tire is mounted in the correct position. On a 2017 BMW Alpina B6 xDrive Gran Coupe with the 20-inch arrangement, the 245/35R20 front and 275/30R20 rear sizes should be verified carefully.
It also helps to check for rubbing at full steering lock, visible wheel damage, and any signs of suspension or alignment trouble that could affect a low-profile radial. A fresh installation is a good time to look for uneven wear patterns from the previous set. Short initial drives followed by a recheck can catch issues early.
How often should tires on a 2017 BMW Alpina B6 xDrive Gran Coupe be inspected?
Tires on a 2017 BMW Alpina B6 xDrive Gran Coupe should be inspected regularly, with a visual check before routine driving and a closer inspection whenever the car has been stored, driven over rough pavement, or shows any change in ride or steering feel. Low-profile radials can reveal damage or air loss quickly.
Routine inspection should include tread wear, cuts, bulges, cracking, and pressure stability across all four tires. On staggered 20-inch cars, checking each axle separately is especially important because front and rear sizes are different. Any collector or low-use example also deserves extra attention for age-related condition, even when tread depth still looks acceptable.
