The 2013 BMW 550i GT blends the long-distance comfort of a luxury grand tourer with the elevated hatchback profile and strong V8-powered character that made the 5 Series Gran Turismo a distinctive choice in BMW’s lineup. Tire selection on this model is configuration-driven, with radial fitments ranging from a single 245/50R18 setup on the Base model to staggered sport-package combinations using 19-inch or 20-inch front and rear sizes. That means the decision is less about vintage bias-ply versus radial construction and more about confirming the exact wheel package, sidewall style, and performance-oriented tire series that match the car’s setup and intended use.
Which Tire Size Is Right for The 2013 BMW 550i GT
The 2013 BMW 550i GT uses five primary tire sizes, and the correct choice depends first on whether the car is a Base model or a sport-package front or rear position. Rim diameter also matters immediately, because this BMW uses 18-inch, 19-inch, and 20-inch fitments. Once the exact setup is confirmed, the real comparison becomes tire series, sidewall treatment, and wheel compatibility within the correct radial size.
245/50R18 is a metric radial size that uses a 245-millimeter section width, a 50-series aspect ratio, and an 18-inch rim diameter. On the 2013 BMW 550i GT, this size serves the Base model in a straightforward radial fitment rather than a staggered front-and-rear arrangement. Available choices in this size include Pro-Trac Street Pro III tires with either raised white letter or redline sidewalls. This size is the place to focus if the car remains on its standard 18-inch wheel package and the goal is selecting the right look within the correct fitment.
245/40R20 is a metric radial size with a 245-millimeter section width, a 40-series profile, and a 20-inch rim diameter. On the 2013 BMW 550i GT, it is used on the front of the sport-package setup with 20-inch wheels, so it should be treated as a position-specific fitment rather than a universal size for every configuration. Choices in this size include BFGoodrich, Nitto, and Pro-Trac tires, with blackwall, raised white letter, and redline sidewall styles depending on the series. It is the correct front size to evaluate when the car carries the 20-inch staggered sport-package wheel arrangement.
245/45R19 is a metric radial size that combines a 245-millimeter section width with a 45-series profile on a 19-inch rim. For the 2013 BMW 550i GT, this size is used at the front on the 19-inch sport-package configuration, making wheel diameter and front-position fitment the key checks before choosing a tire. Available products in this size come from BFGoodrich and Nitto, primarily in blackwall performance-oriented series such as g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This is the front fitment to compare when the car wears 19-inch staggered sport-package wheels.
275/35R20 is a metric radial size with a wider 275-millimeter section width, a 35-series profile, and a 20-inch rim diameter. On the 2013 BMW 550i GT, it is the rear companion to the 20-inch sport-package front size, so it belongs to a staggered setup rather than a square four-tire arrangement. Product choices include BFGoodrich, Nitto, and Pro-Trac, with blackwall options alongside raised white letter and redline versions in the Street Pro III line. This is the rear size to verify when matching the 20-inch sport-package wheel package and preserving the intended front-to-rear sizing relationship.
275/40R19 is a metric radial size using a 275-millimeter section width, a 40-series aspect ratio, and a 19-inch rim. For the 2013 BMW 550i GT, it serves as the rear tire size in the 19-inch sport-package arrangement, so it should be selected with the matching front size and correct rear wheel setup in mind. BFGoodrich and Nitto options are available here, including blackwall performance series such as g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. It is the rear fitment to compare when the car is equipped with the 19-inch staggered sport-package combination.
Tire fitment on the 2013 BMW 550i GT changes by sub-model and wheel package, so identifying the exact configuration comes before choosing a tire. The Base model uses a single 18-inch size, while sport-package fitment is staggered and split between front and rear sizes on either 19-inch or 20-inch wheels.
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2013 BMW 550i GT Base
The 2013 BMW 550i GT Base uses a single radial tire size rather than a staggered front-and-rear arrangement. That keeps selection more straightforward, with the main decision centered on confirming the 18-inch wheel setup and choosing the sidewall presentation that suits the car’s look.
The 2013 BMW 550i GT w/Sport Pkg. Front uses one of two front radial sizes depending on whether the car has the 19-inch or 20-inch sport-package wheels. Tire selection starts with confirming wheel diameter, then matching the front tire to the correct rear companion size in the staggered setup.
The 2013 BMW 550i GT w/Sport Pkg. Rear uses one of two wider rear radial sizes tied to the 19-inch or 20-inch sport-package configuration. Choosing correctly means confirming the rear wheel diameter and preserving the intended staggered relationship with the matching front tire size.
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 2013 BMW 550i GT Tires for Sale
Available 2013 BMW 550i GT tires span BFGoodrich, Nitto, and Pro-Trac lines, with blackwall performance options joined by raised white letter and redline styles in selected sizes. Depending on the wheel package, the product grid lets you compare series character, sidewall appearance, and rim-width compatibility within the correct radial fitment.
Owners of a 2013 BMW 550i GT usually need to sort out exact tire size, wheel diameter, and whether the car uses a single-size or staggered sport-package setup. The questions below focus on fitment, tire selection, appearance choices, and the checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 2013 BMW 550i GT?
The 2013 BMW 550i GT uses several radial tire sizes: 245/50R18, 245/45R19, 275/40R19, 245/40R20, and 275/35R20. The Base model uses 245/50R18, while sport-package cars use staggered front and rear sizes in either a 19-inch or 20-inch combination.
The most important first step is identifying the exact wheel package on the car. A Base model with 18-inch wheels should not be approached the same way as a sport-package car with different front and rear sizes, and mixing the wrong front or rear pairing can create fitment and appearance issues.
What size rim does a 2013 BMW 550i GT use?
A 2013 BMW 550i GT can use 18-inch, 19-inch, or 20-inch rims, depending on the configuration. The Base model uses an 18-inch fitment, while sport-package versions use either 19-inch or 20-inch front and rear combinations with different tire sizes at each end.
Wheel diameter should be confirmed before looking at tire choices, because each size is tied to a specific rim diameter. On sport-package cars, that check matters even more since the front and rear tires are staggered, so the correct tire depends on both wheel size and axle position.
Why does the 2013 BMW 550i GT have more than one tire size?
The 2013 BMW 550i GT has more than one tire size because fitment changes with the vehicle’s wheel package and whether it uses a standard or sport-package setup. The Base model uses one size, while sport-package versions use staggered front and rear radial sizes on either 19-inch or 20-inch wheels.
That means tire selection is configuration-specific rather than one-size-fits-all. Looking only at the year, make, and model is not enough on this BMW; the exact wheel diameter and whether the tire is for the front or rear must be matched correctly before comparing brands, series, or sidewall style.
Choosing the Right Tire
What should I consider when choosing a 2013 BMW 550i GT tire?
Start with the exact tire size and wheel package on the car, because the 2013 BMW 550i GT can use a single 18-inch size or staggered 19-inch and 20-inch sport-package combinations. After that, compare construction details that matter to your setup, including rim-width compatibility where stated, sidewall style, tire series, and load figures when shown.
The right choice depends on how the car is used and how you want it to present. A blackwall performance radial may suit a modern sport-oriented look, while raised white letter or redline options can shift the visual character without changing the need to stay within the proper size and wheel range.
What sidewall styles are available for 2013 BMW 550i GT tires?
Sidewall style depends on tire size. Blackwall choices are available in the 19-inch and 20-inch sport-package sizes through BFGoodrich and Nitto, while Pro-Trac Street Pro III adds raised white letter and redline versions in 245/50R18, 245/40R20, and 275/35R20.
That gives the 2013 BMW 550i GT owner a real appearance choice within the correct fitment. The key is to treat sidewall style as a finishing decision after confirming the exact size and wheel package, since not every sidewall treatment is offered across every front and rear sport-package dimension.
What brands offer tires for the 2013 BMW 550i GT?
Tires for the 2013 BMW 550i GT are available from BFGoodrich, Nitto, and Pro-Trac, depending on the size. BFGoodrich appears across several of the 19-inch and 20-inch sport-package fitments, Nitto covers multiple sport-package sizes, and Pro-Trac is available in selected 18-inch and 20-inch applications.
Brand choice should come after the fitment is narrowed to the correct size and axle position. Once that is settled, it becomes easier to compare series character, blackwall versus redline or raised white letter styling, and any stated rim-width or load-capacity details that matter for your particular wheel setup.
Restoration & Appearance
Which tire should I choose for a period-style 2013 BMW 550i GT?
A period-style approach for a 2013 BMW 550i GT still starts with the exact original-size fitment already on the car, whether that is the Base 245/50R18 setup or one of the staggered sport-package combinations. From there, the choice becomes more about visual presentation than construction, since these fitments are radial rather than vintage bias-ply sizes.
Pro-Trac raised white letter and redline options create a more pronounced appearance in certain sizes, while blackwall tires preserve a cleaner modern look. When exact originality matters, it is worth cross-checking period BMW sales materials, marque references, or well-documented examples before treating any sidewall treatment as historically correct.
How does tire construction affect the appearance of a restored 2013 BMW 550i GT?
On a 2013 BMW 550i GT, tire construction is less of a styling divide than it would be on an older collector car because the vehicle’s primary fitments are already radial. The more visible appearance change comes from sidewall treatment, tire series character, and whether the car retains its standard 18-inch wheels or staggered sport-package setup.
That makes wheel-and-tire proportion especially important to the finished look. Keeping the correct front and rear sizing relationship on sport-package cars helps preserve the car’s intended stance, while changing sidewall style can move the presentation toward a subtler factory-inspired look or a more customized visual statement.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 BMW 550i GT?
Yes. Modifications such as aftermarket wheels, different wheel widths, suspension changes, or altered ride height can affect tire fitment on a 2013 BMW 550i GT, especially on sport-package cars that already use staggered front and rear sizing. Even when the tire size looks close, the wheel and body relationship may no longer match the original setup.
That is why wheel diameter, wheel width, and front-versus-rear position should be checked before ordering replacements. Clearance at the fender, inner suspension area, and steering travel all matter, and a modified car should be measured from its actual installed setup rather than assumed to match factory dimensions.
What should I inspect before driving a 2013 BMW 550i GT on new tires?
Before driving a 2013 BMW 550i GT on new tires, inspect the wheel condition, confirm the tire size matches the car’s actual configuration, and make sure each tire is mounted in the correct front or rear position on staggered sport-package setups. Tire pressure should be set properly, and the wheels should be free of visible damage or sealing problems.
A short initial check drive is worthwhile to listen for rubbing, vibration, or pull. It also helps to recheck pressure after the first few drives and confirm there is no interference during full steering lock or suspension movement, particularly if the car has non-original wheels or previous suspension changes.
What should I check before a longer drive in a 2013 BMW 550i GT?
Before a longer drive, confirm that the 2013 BMW 550i GT has the correct front and rear tire sizes for its wheel package, proper inflation, and no visible cracking, bulges, cuts, or unusual tread wear. On a staggered setup, it is especially important that the wider rear tires and narrower front tires are in the correct positions.
A longer run is also a good time to verify that the car tracks smoothly and that there is no vibration at highway speed. Owners of low-use vehicles should pay extra attention to tire age and air loss, since a BMW that sits for extended periods can appear fine visually while still needing closer inspection.
