The 2016 BMW 640i sits in the grand-touring side of the 6 Series lineup, blending long-hood coupe and convertible styling with the kind of chassis balance and high-speed composure buyers expect from a modern BMW. Tire selection on this car is configuration-driven, with radial fitments spanning 18-, 19-, and 20-inch wheels and, in staggered setups, different front and rear sizes. That makes the real choice less about vintage-style construction and more about matching the exact wheel setup, profile, and intended use. Available options center on blackwall performance radials from BFGoodrich and Nitto across several series, so wheel diameter and front-versus-rear fitment should be confirmed before choosing.
Which Tire Size Is Right for The 2016 BMW 640i
The 2016 BMW 640i uses five primary tire sizes, and the right one depends on the exact wheel setup and whether the car is using a square or staggered front-and-rear arrangement. These radial fitments span 18-, 19-, and 20-inch rims, so the first step is confirming wheel diameter and then identifying whether the tire is for the front axle, rear axle, or a non-staggered coupe or convertible setup.
Fit(s): Convertible, Convertible Front, Coupe, and Coupe Front
Construction: Radial|Rim: 19 in
245/40R19 is a metric radial size with a 245-millimeter section width, a 40-series aspect ratio, and fitment for a 19-inch wheel. On the 2016 BMW 640i, it serves as one of the key front or all-around fitments depending on configuration, making it a common choice for owners staying with a 19-inch setup. Available tires in this size come from BFGoodrich and include g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A blackwall options. It is the size to evaluate when the car carries 19-inch wheels and the goal is to match the proper profile and axle position.
245/45R18 is a metric radial size that combines a 245-millimeter section width with a taller 45-series profile on an 18-inch rim. For the 2016 BMW 640i, this size applies to certain non-staggered coupe and convertible configurations and gives the buyer an 18-inch fitment path rather than the lower-profile 19- or 20-inch alternatives. Product choices include blackwall tires from BFGoodrich and Nitto across series such as g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. It is the right size to consider only after confirming that the car is actually equipped with 18-inch wheels.
245/35R20 is a metric radial size with a 245-millimeter section width, a lower 35-series sidewall, and a 20-inch rim diameter. On the 2016 BMW 640i, this size is used in front-fitment applications on staggered 20-inch setups, so it should not be confused with the car's rear tire size. BFGoodrich and Nitto both offer blackwall choices here, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This is the size to review when the car has 20-inch front wheels and the goal is to preserve the intended staggered relationship.
275/30R20 is a wider metric radial size that uses a 275-millimeter section width, a 30-series profile, and a 20-inch wheel diameter. For the 2016 BMW 640i, it serves as the rear companion size on staggered 20-inch setups, so its role is tied directly to axle position rather than universal fitment across the car. The available choice in this size is a blackwall Nitto NT555 G2 radial. It belongs in the conversation only when the rear wheels are 20-inch staggered wheels, because matching front and rear sizing strategy is essential on this BMW.
275/35R19 is a metric radial size with a 275-millimeter section width, a 35-series aspect ratio, and fitment for a 19-inch wheel. On the 2016 BMW 640i, this size is used as a rear tire in staggered 19-inch applications, pairing with a narrower front size rather than serving as an all-around fitment. Buyers can compare blackwall choices from BFGoodrich and Nitto, including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. It is the correct size to evaluate when the car has 19-inch staggered rear wheels and rear-tire width must be maintained.
Fitment on the 2016 BMW 640i varies by sub-model and by front-versus-rear wheel position on staggered setups. Checking the exact coupe or convertible configuration matters because the car may use either a single size at all four corners or different front and rear sizes on larger wheel packages.
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2016 BMW 640i Convertible
The 2016 BMW 640i Convertible uses either an 18-inch or 19-inch radial fitment in a non-staggered configuration. Tire selection here starts with confirming wheel diameter, then comparing available blackwall performance radials in the correct size.
The 2016 BMW 640i Convertible Front uses the narrower front tire sizes from the staggered 19-inch or 20-inch setups. That makes front-wheel diameter the key checkpoint before choosing a replacement, especially when preserving the intended front-to-rear size relationship.
The 2016 BMW 640i Convertible Rear uses the wider rear radial sizes paired with staggered 19-inch or 20-inch wheel packages. Rear tire selection should stay focused on the correct wheel diameter and the wider axle-specific fitment rather than treating the car as a square setup.
The 2016 BMW 640i Coupe uses either an 18-inch or 19-inch radial size when equipped with a non-staggered setup. The main decision is confirming which wheel diameter is on the car and then choosing among the available blackwall performance tire series in that size.
The 2016 BMW 640i Coupe Front uses one of the narrower front radial sizes from the staggered fitments. Tire choice here should begin with the actual front wheel diameter, since 19-inch and 20-inch front setups use different low-profile sizes.
The 2016 BMW 640i Coupe Rear uses the wider rear radial sizes associated with staggered 19-inch or 20-inch wheel combinations. Buyers should verify rear wheel diameter first, then compare the available rear-specific options that match the car's staggered setup.
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 Tires for Sale
Available 2016 BMW 640i tires focus on blackwall radial performance options from BFGoodrich and Nitto. Depending on size, buyers can compare g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 choices across 18-, 19-, and 20-inch fitments.
These 2016 BMW 640i tire FAQs focus on exact size selection, staggered front-and-rear fitment, rim diameter, available radial choices, and the checks that matter before driving on replacement tires.
Tire Size & Fitment
What tire size fits a 2016 BMW 640i?
The 2016 BMW 640i uses several radial tire sizes: 245/45R18, 245/40R19, 245/35R20, 275/35R19, and 275/30R20. The correct size depends on whether the car is a coupe or convertible, whether it has a square or staggered setup, and whether the tire is for the front or rear axle.
That means the first step is confirming the wheel package actually on the car rather than selecting by model name alone. A 640i with 18-inch wheels does not use the same tire as one with staggered 20-inch wheels, and a front tire on a staggered setup does not match the rear.
What size rim does a 2016 BMW 640i use?
The 2016 BMW 640i uses 18-inch, 19-inch, and 20-inch rim diameters depending on configuration. The associated tire sizes are 245/45R18 for 18-inch wheels, 245/40R19 and 275/35R19 for 19-inch wheels, and 245/35R20 plus 275/30R20 for 20-inch wheels.
Wheel diameter should be verified before looking at tire brand or tread pattern because the profile changes with each rim size. It also helps to confirm whether the car has the same wheel size at all four corners or a staggered arrangement with different front and rear widths.
Why does the 2016 BMW 640i have more than one tire size?
The 2016 BMW 640i has more than one tire size because it was offered with different wheel diameters and, in some configurations, staggered front-and-rear fitment. Some coupe and convertible setups use a single size at all four corners, while others use narrower front tires and wider rear tires.
That variation matters because the right tire is tied to the actual wheel package on the car, not just the model badge. Checking the door-jamb label, the existing tire sidewalls, and the front-versus-rear wheel sizes can prevent ordering a front size for the rear or mixing profiles unintentionally.
Choosing the Right Tire
What should I consider when choosing a 2016 BMW 640i tire?
Start with the exact tire size and wheel diameter on the car, then confirm whether the setup is square or staggered. On the 2016 BMW 640i, that means choosing among 18-, 19-, or 20-inch radial fitments and making sure front and rear sizes stay in the correct relationship when the car uses staggered wheels.
After fitment is confirmed, compare the available tire series, construction details, and rim-width compatibility within that size. BFGoodrich and Nitto options give different product choices, but the most important decision remains matching the tire to the actual wheel setup and intended road use rather than choosing by brand first.
What sidewall styles are available for 2016 BMW 640i tires?
The available 2016 BMW 640i tire options in these sizes use blackwall sidewalls. That keeps the look consistent across the product range, whether the car is using 18-inch, 19-inch, or 20-inch radial fitments from BFGoodrich or Nitto.
Since sidewall styling is straightforward here, the real comparison shifts to tire series, wheel diameter, and whether the tire is intended for the front or rear axle on a staggered setup. Once the correct size is confirmed, buyers can focus on the product line that best matches how the car is driven.
What brands offer tires for the 2016 BMW 640i?
BFGoodrich and Nitto both offer tires for the 2016 BMW 640i across the applicable sizes. Depending on the exact fitment, choices include BFGoodrich g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and Nitto NT555 G2.
Brand choice should come after the fitment basics are settled, because not every series is offered in every 640i size. It helps to confirm the exact wheel diameter and whether the tire is for a square setup or a staggered front or rear position before comparing the available brand and series combinations.
Restoration & Appearance
Does correct tire fitment matter for a 2016 BMW 640i restoration?
Correct tire fitment still matters on a 2016 BMW 640i even though this is a modern radial application rather than a vintage bias-ply one. The car uses low-profile metric radial sizes tied closely to wheel diameter and, on some setups, to distinct front and rear positions.
A restoration-minded approach should preserve the wheel-and-tire proportions intended for the specific configuration on the car. Before choosing replacements, verify whether the 640i is running 18-, 19-, or 20-inch wheels and whether it uses a square or staggered layout so the finished appearance stays consistent and properly scaled.
How does tire construction affect the appearance of a restored 2016 BMW 640i?
On the 2016 BMW 640i, tire construction is straightforward because the primary fitments are radial throughout. That means appearance differences come less from bias-ply-versus-radial concerns and more from selecting the correct low-profile size, keeping the proper wheel diameter, and preserving the front-to-rear relationship on staggered setups.
For a clean, correct-looking presentation, avoid treating the car like a one-size-fits-all application. A 20-inch staggered setup has a distinctly different visual stance from an 18-inch square setup, so confirming the existing wheel package is the key step before comparing blackwall product choices within the proper size range.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2016 BMW 640i?
Yes, modifications can affect tire fitment on a 2016 BMW 640i. Changes such as aftermarket wheels, altered wheel widths, suspension lowering, or body modifications can change the clearance available for the factory-size tire and can also complicate the front-to-rear relationship on a staggered setup.
A car that has been modified should be checked at full steering lock and through suspension travel before replacement tires are chosen. It is also wise to confirm actual wheel diameter and width on the vehicle, because a tire that matches the model year may still be wrong for the hardware currently installed.
What should I inspect before driving a 2016 BMW 640i on new tires?
Before driving a 2016 BMW 640i on new tires, inspect the wheels for damage, confirm the tire sizes match the axle positions, and check that inflation pressure is set correctly for the car's setup. A close look at valve stems, wheel condition, and tread seating is also worthwhile before regular road use.
The first short drive should include listening for rubbing and watching for any sign of clearance trouble during turns or over bumps. On a staggered 640i, make sure the wider rear tires are mounted at the rear and that all four tires match the intended wheel diameters already on the car.
What should I check before a longer drive in a 2016 BMW 640i?
Before a longer drive, check tire pressure, tread condition, visible sidewall damage, and any signs of irregular wear on the 2016 BMW 640i. It also helps to verify that the car is still running the correct front and rear sizes for its wheel package, especially if the vehicle has a staggered setup.
A longer trip puts more emphasis on consistency, so look for slow air loss, cuts, bulges, or uneven shoulder wear that could point to alignment or clearance issues. Cars that see occasional use should also have tire age and overall condition reviewed carefully, even when tread depth still appears serviceable.