The 2016 BMW 640i Gran Coupe blends coupe-like rooflines with full-size grand touring character, making tire fitment a bigger decision than it might seem at first glance. This is a modern performance luxury car, and its stance, steering response, and visual balance depend heavily on getting the correct wheel-and-tire combination right. Depending on configuration, the 2016 BMW 640i Gran Coupe uses radial sizes on 18-, 19-, or 20-inch rims, including both square and staggered setups. Available choices center on blackwall radial performance tires from BFGoodrich and Nitto across several series. The key is confirming whether the car is Base or M Sport, and whether it uses matching front and rear sizes or a staggered arrangement.
Which Tire Size Is Right for The 2016 BMW 640i Gran Coupe
Five primary tire sizes apply to the 2016 BMW 640i Gran Coupe, and the right choice depends on sub-model, wheel diameter, and whether the car uses a square or staggered setup. The first step is confirming the exact configuration on the car, because this BMW can use 18-, 19-, or 20-inch rims and some versions use different front and rear sizes. Once that is clear, the decision shifts to tire series, brand, and intended road use.
245/45R18 is a metric radial size with a 245-millimeter section width, a 45-series aspect ratio, and fitment for an 18-inch rim. On the 2016 BMW 640i Gran Coupe, this size serves the Base configuration and keeps the fitment centered on a square radial setup rather than a staggered front-and-rear combination. Available choices are blackwall radials from BFGoodrich and Nitto in series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size is the one to evaluate when the car has 18-inch wheels and the owner wants to compare touring-versus-performance character within the correct fitment.
245/40R19 is a metric radial size that uses a 245-millimeter section width, a 40-series profile, and a 19-inch rim. On the 2016 BMW 640i Gran Coupe, it appears as a front fitment in staggered 19-inch applications and is also used on certain M Sport front positions. Product choices in this size are blackwall radials from BFGoodrich across the g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A lines. This is the right size to review when the car has 19-inch front wheels and tire selection is focused on preserving the intended front-to-rear balance.
275/35R19 is a metric radial with a wider 275-millimeter section width, a 35-series profile, and fitment for a 19-inch rim. On the 2016 BMW 640i Gran Coupe, this size is used in rear positions on staggered 19-inch setups, pairing with a narrower front tire rather than serving as a universal fitment. BFGoodrich and Nitto both offer blackwall radial options here, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size matters most when confirming the rear tire on a staggered car, where matching the correct rear specification is just as important as choosing the front size.
245/35R20 is a metric radial size with a 245-millimeter section width, a lower 35-series profile, and fitment for a 20-inch rim. On the 2016 BMW 640i Gran Coupe, it appears on M Sport front applications using the larger wheel package, so it should be treated as a configuration-specific front size rather than a fitment for every car. Available blackwall radial options include BFGoodrich g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and Nitto NT555 G2. This size is the one to compare when the car is equipped with 20-inch front wheels and maintaining the intended low-profile staggered setup is the priority.
275/30R20 is a metric radial size with a 275-millimeter section width, a very low 30-series profile, and fitment for a 20-inch rim. On the 2016 BMW 640i Gran Coupe, it serves as the rear size in the larger staggered M Sport arrangement, where rear width and overall pairing with the front tire are central to proper selection. The available product choice in this size is a blackwall Nitto NT555 G2 radial. This size should be checked carefully against the actual rear wheel setup on the car, especially if the vehicle has had wheel changes or is no longer wearing its original diameter.
Fitment on the 2016 BMW 640i Gran Coupe varies by sub-model and by front-versus-rear position on staggered setups. Checking the exact configuration matters here, because the car can use a single 18-inch size or move into 19-inch or 20-inch front-and-rear combinations that must be matched correctly.
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2016 BMW 640i Gran Coupe Base
The Base configuration uses a straightforward single-size radial fitment on 18-inch wheels, making the main decision one of tire series and brand rather than front-to-rear sizing. That setup is usually the simplest path for buyers who want to stay with the existing wheel diameter and avoid staggered-fitment complexity.
The Base Front position uses the narrower front tire from the 19-inch staggered arrangement rather than the wider rear size. Tire selection here should keep the front fitment distinct from the rear, especially when replacing only one axle or verifying what is already mounted on the car.
The Base Rear position uses the wider rear tire from the 19-inch staggered setup, which is not interchangeable with the corresponding front size. That means the owner should confirm rear wheel diameter and maintain the correct staggered relationship before choosing among available blackwall radial options.
The M Sport fitment centers on a 19-inch radial setup, separate from the 18-inch Base arrangement and the optional larger front-and-rear 20-inch combination. Tire choice here depends on whether the car remains on the 19-inch package or has the larger M Sport front and rear wheel set installed.
The M Sport Front position can use either the 19-inch front size or the 20-inch front size, so wheel diameter must be confirmed before any tire is selected. That makes this one of the most important fitment checks on the page, since the two front sizes are both valid but belong to different wheel packages.
The M Sport Rear position can use either the 19-inch rear size or the 20-inch rear size, depending on the wheel package on the car. Selecting the rear tire starts with confirming rim diameter and then matching it to the proper front companion size so the staggered setup stays consistent.
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 640i Gran Coupe Tires for Sale
Available 2016 BMW 640i Gran Coupe tire choices focus on blackwall radial performance tires from BFGoodrich and Nitto. Across the five fitments, buyers can compare series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2, with differences in wheel-diameter coverage and rim-width compatibility.
These FAQs focus on the real tire questions for a 2016 BMW 640i Gran Coupe: identifying the correct size by sub-model and wheel package, understanding staggered fitment, comparing available radial options, and checking the car before road use.
Tire Size & Fitment
What tire size fits a 2016 BMW 640i Gran Coupe?
The 2016 BMW 640i Gran Coupe uses five primary tire sizes: 245/45R18, 245/40R19, 275/35R19, 245/35R20, and 275/30R20. All of them are radial sizes, and the correct one depends on whether the car is Base or M Sport, plus whether it uses a square setup or a staggered front-and-rear arrangement.
The most important step is confirming the actual wheel package on the car before ordering tires. This BMW can use 18-, 19-, or 20-inch rims, and the staggered versions require different front and rear sizes, so the sidewall size already mounted and the wheel diameter both need to match the intended replacement.
What size rim does a 2016 BMW 640i Gran Coupe use?
A 2016 BMW 640i Gran Coupe can use 18-inch, 19-inch, or 20-inch rims, depending on configuration. The 245/45R18 size fits an 18-inch rim, the 245/40R19 and 275/35R19 sizes fit 19-inch rims, and the 245/35R20 and 275/30R20 sizes fit 20-inch rims.
Rim diameter needs to be verified before anything else, because tire sizes do not interchange across those wheel diameters. Once the wheel size is confirmed, the next check is whether the car uses matching tires at all four corners or a staggered setup with a narrower front and wider rear.
Why does the 2016 BMW 640i Gran Coupe have more than one tire size?
The 2016 BMW 640i Gran Coupe has more than one tire size because different versions use different wheel packages, and some configurations are staggered. That means one setup may use a single size on 18-inch wheels, while others use separate front and rear sizes on 19-inch or 20-inch rims.
This matters because the correct tire is tied to the exact setup on the car, not just the year, make, and model name. Looking only at the badge is not enough; checking the sub-model, front-versus-rear position, and current wheel diameter prevents choosing a tire that belongs to a different package.
Choosing the Right Tire
What should I consider when choosing a 2016 BMW 640i Gran Coupe tire?
Start with the exact size and wheel diameter the car actually uses, then narrow the choice by whether the setup is square or staggered. On a 2016 BMW 640i Gran Coupe, that means confirming if the car needs 245/45R18, a 19-inch front-and-rear combination, or a 20-inch front-and-rear combination before comparing individual tires.
After fitment is confirmed, the useful comparisons are tire series, brand, rim-width compatibility, and any available load information. A buyer replacing all four tires may want consistency across the set, while someone replacing one axle should pay closer attention to matching the correct front or rear application.
What sidewall styles are available for 2016 BMW 640i Gran Coupe tires?
The available tires for the 2016 BMW 640i Gran Coupe use blackwall sidewalls across all five fitments. That keeps the visual presentation modern and understated, which suits the car's late-model grand touring character without introducing period-style whitewall or stripe treatments that belong to much older vehicles.
Since sidewall styling does not create much variation here, the real comparison shifts to tire series, wheel-diameter coverage, and brand availability. Buyers choosing between 18-, 19-, or 20-inch fitments should treat sidewall style as consistent and focus instead on selecting the tire that matches the car's actual wheel package.
What brands offer tires for the 2016 BMW 640i Gran Coupe?
BFGoodrich and Nitto offer tires for the 2016 BMW 640i Gran Coupe. Depending on size, the available choices include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2, with some sizes carrying both brands and others having a narrower selection.
The practical difference is not just brand name but which size each brand covers in the car's actual configuration. A buyer with 18-inch wheels has more cross-shopping options than someone selecting the 275/30R20 rear size, so it helps to confirm the exact front or rear position before comparing series.
Restoration & Appearance
Does correct tire fitment matter for a 2016 BMW 640i Gran Coupe restoration?
Correct tire fitment still matters on a 2016 BMW 640i Gran Coupe, even though this is a newer collector-era BMW rather than a traditional restoration car. The right wheel diameter, correct front-and-rear sizing, and proper overall stance all affect how the car looks and how faithfully it reflects its original configuration.
For appearance-focused work, the first priority is keeping the car on the wheel package that belongs to its exact setup. A square 18-inch arrangement presents differently from a staggered 19- or 20-inch package, so checking the actual wheels on the car is more important than treating every 640i Gran Coupe the same.
How does tire construction affect the appearance of a restored 2016 BMW 640i Gran Coupe?
On a 2016 BMW 640i Gran Coupe, tire construction is straightforward because the primary fitments are all radial. That means the visual differences come less from bias-ply-versus-radial appearance and more from wheel diameter, sidewall height, and whether the car is wearing a square setup or a staggered package.
A car on 18-inch 245/45R18 tires will present differently from one on 19-inch or 20-inch low-profile fitments, even though all are modern radial constructions. Keeping the tire size aligned with the intended wheel package is the best way to preserve the car's design balance and avoid an off-proportion look.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2016 BMW 640i Gran Coupe?
Yes, modifications can affect tire fitment on a 2016 BMW 640i Gran Coupe. Aftermarket wheels, suspension changes, altered ride height, or changes in wheel width can all influence which of the original tire sizes still makes sense and whether the car has enough steering, fender, and suspension clearance.
A modified car should never be treated the same as a stock example just because the body badge matches. Checking the actual wheel diameter, front and rear wheel widths, and the tire size currently mounted helps prevent mixing a valid factory-style size with a wheel or suspension setup that changes clearance.
What should I inspect before driving a 2016 BMW 640i Gran Coupe on new tires?
Before driving a 2016 BMW 640i Gran Coupe on new tires, inspect the wheels for damage, confirm the tire sizes match the car's actual front and rear positions, and verify the bead seats properly on the intended rim diameter. It is also wise to check valve stems, air pressure, and any signs of rubbing once the car is back on the ground.
A short, careful road test is a smart follow-up, especially on staggered 19-inch or 20-inch setups. Listen for contact during turns, pay attention to steering feel, and recheck pressure after the first drive so the new tires start service with the correct fitment and no obvious clearance issues.
How often should tires on a 2016 BMW 640i Gran Coupe be inspected?
Tires on a 2016 BMW 640i Gran Coupe should be inspected regularly, not just when tread looks low. Performance-oriented low-profile sizes can hide damage less forgivingly than taller sidewalls, so checking for cracking, cuts, bulges, punctures, uneven wear, and pressure loss should become part of normal routine maintenance.
Cars that are driven infrequently deserve extra attention because age and storage conditions can matter as much as mileage. A quick inspection before longer trips and periodic checks during the season help catch issues early, particularly on staggered setups where front and rear tires may wear differently.
