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What is the Tire Size of the BMW M8?
BMW M8 tire sizes vary slightly between years, models, and trim levels. The latest models of the Gran Coupe trim, which is very popular, use two different tire sizes on its 20-inch wheels. On the front, the 2021 BMW M8 Gran Coupe uses 275/35R20 XL tires. On the rear, it uses 285/35R20 tires.
Since the BMW M8 is all-wheel-drive, why are the rear tires wider? The M8 uses a rear-biased all-wheel-drive system, which focuses most of the acceleration power to the rear wheels for better performance. As a result, the rear tires get 10mm of extra width for traction and stability. This size difference isn’t as dramatic as it is on rear-wheel-drive-only cars.
Decoding BMW M8 Tire Sizes
The easiest way to find your factory wheel and tire size is to check the tire information decal in the driver’s side door well. This sticker includes stock tire sizes and pressures.
The numerical code used to denote tire size is also relatively simple, and understanding it can help you pick the right tires or tire upgrade. For example, a 285/35R20 tire is 285 millimeters wide, has a sidewall height of 35% of the width, and is a radial tire for a 20-inch wheel.
What Kind of Tires Does the BMW M8 Use?
BMW M8 factory tires vary between trims. For example, the base model comes with standard road tires, and the M8 Gran Coupe Competition model comes with high-performance street tires. These BMWs are not usually equipped from the factory with run-flat tires, unlike other models like the 3-series and the 5-series.
BMW M8s can use a wide variety of tire types, though summer tires are the most common. Summer tires offer the best grip, superior dry handling, and overall road contact. However, summer tires are not ideal for all situations. Though they perform fine in warm, wet weather, summer tires quickly become unusable when the temperature drops.
In more typical North American climates that experience mild annual snowfall, the best tires for BMW M8 are all-season (or A/S) tires. High-performance all-season tires are a popular choice, as they improve handling and get quite close to summer tires in terms of cornering and dry traction.
The harshest winter climates call for winter tires, which are available in sizes that fit the BMW M8. Winter tires use a cold-weather rubber compound that stays supple and bites into snow, reducing braking distances and improving traction on wet surfaces. Winter tires have a long life expectancy, but they don’t offer the same performance that summer tires do.
Best Tires for the BMW M8
We found five of the best and highest quality tires available for the M8. These tires have a long life expectancy, great stability, and the traction needed for their respective climate zones. Here are our top picks.
1. BFGoodrich G-Force Sport Comp 2 Tires
BFGoodrich, or BFG, is well known for being on the cutting-edge of tire design. Their tires are a favorite of BMW owners and dealers, who often equip their higher-trim vehicles with them. The BFG G-Force Sport Comp 2 tire is one of the best performance tires for the BMW M8 and a great upgrade for factory tires.
At first glance, the tread of this tire stands out. It features two deep circumferential grooves, which are designed to shed water on rainy days to help maintain traction. The cuts between the tread aren’t particularly wide, which increases overall road contact and stability.
These BFG tires are technically classified as “ultra high performance” tires, as they’re designed specifically for cars like the BMW M8. They are available in wide, short sizes, which are typical on sports cars, and they provide the precision handling required to get the most out of them.
These tires excel in ride comfort and handling, thanks to their silica-infused tread compound and excellent contact patch design. Additionally, these tires reduce acceleration slippage and braking distance for the same reasons. These BFG G-Force tires come with a 6-year factory warranty.
You can buy a set of BFGoodrich G-Force Sport Comp 2 tires from Discount Tire for between $99 and $248 each, depending on size and speed rating.
BFGoodrich G-Force Sport Comp 2 tires are the best high-performance tires for warm and dry roads.
2. Goodyear Eagle F1 Asymmetric 2 Tires
Goodyear is also known for its wide selection of high-performance tires, and the Eagle 1 Asymmetric 2 is the cream of the crop. These carefully designed summer tires are made to help you get the most out of your acceleration and braking—not to mention high-speed cornering.
As a summer tire, Goodyear Eagle F1s are designed for use in warm climates on mostly dry roads. However, they can handle rain on a summer day thanks to four wide circumferential grooves. Other than the water-shedding grooves, these tires have very few voids. This maximizes road contact and improves handling and stability.
As a premium tire, you can expect several additional features that may not be available from the factory. This includes run-flat capability, which is rare on M8 factory tires. These run-flats allow you to drive 50 mph for up to 50 miles on a flat, giving you plenty of time to make it to a tire shop for repairs.
Goodyear Eagle F1 tires have an asymmetrical tread pattern, which improves stability and provides better tread to the areas that need it most. Asymmetrical tread is increasingly common on performance cars and preferred by many drivers thanks to its precision.
You can buy a set of Goodyear Eagle F1 Asymmetric 2 tires from Discount Tire for between $199 and $585, depending on the size, speed rating, and sidewall type you choose.
Goodyear Eagle F1 Asymmetric 2 tires are a high-performance run-flat tire that is a fantastic upgrade for all BMW M8 trim levels.
3. Michelin Defender LTX M/S All-Season Tires
Summer tires just won’t cut it in some climates—which is where the Michelin Defender LTX M/S comes in. This high-quality performance all-season tire works just as well in the sun and snow and provides great dry road handling without sacrificing seasonal safety.
The Michelin Defender LTX M/S is an all-season performance touring tire with a long lifespan and excellent asymmetrical tread. The tire is beefier than its equivalent summer tire and thus provides better traction in snow and cold rain. It features a rubber compound that’s more flexible in varied climates.
The Michelin Defender LTX features a 50,000-mile to 70,000-mile warranty, depending on the way you install your tires. Owners of this tire commend it for exceptional comfort and quietness, along with surprisingly good stability and precision.
Michelin Defender tires feature deep tread voids that are relatively narrow for an all-season tire. This helps increase road contact while simultaneously shedding water. The sharp tread edges help bite down into packed snow, which helps drivers keep control of the car when summer tires wouldn’t have a chance.
You can buy a set of Michelin Defender LTX M/S all-season tires on Discount Tire for between $152 and $413, depending on the specs you choose.
Michelin Defender LTX tires are the best high-performance all-season tire for M8 drivers in less temperate climates.
4. Nitto NT555 G2 Summer Tires
Summer tires are great for dry-weather performance and offer unmatched comfort and ride quality. The Nitto NT555 G2 summer tires are a great option for the BMW M8, as they offer a quiet ride, great road contact, and great stability.
A quick glance at the Nitto NT555 reveals a directional tread pattern, which has long been known to improve acceleration and handling. Additionally, the wide tread and gently sloping edges improve cornering and handling at speed. As you’d expect, the tire also features circumferential grooves to help quickly shed water during rainy days.
Nitto NT555 tires are made for high-speed precision driving. That’s why they’re W-rated from the factory for speeds up to 168 mph. They’re also lightweight, weighing in at only 32 to 34 pounds per tire. Nitto NT555 tires are designed specifically for performance cars and handle well on coupes and sedans alike.
You can buy a set of high-performance Nitto NT555 G2 summer tires from Discount Tire for between $237 and $259 each.
Nitto NT555 G2 summer tires are a great everyday tire for a quiet ride and solid high-speed handling in warm climates.
5. Bridgestone Blizzak LM-25 Winter Tires
You don’t have to park your BMW M8 during the winter, even if you live in an area that gets excessive snowfall. The best way to get the most out of your advanced all-wheel-drive system is to install a set of premium Bridgestone Blizzak LM-25 studless winter tires.
The Blizzak LM-25 is a winter tire designed specifically for cars that don’t normally do well in the winter. It features state-of-the-art treat sipes for gripping confidently into packed or loose snow, along with a special winter rubber compound to keep it supple in the coldest temperatures.
The Blizzak LM-25 features a directional tread pattern similar to what we find on high-performance summer tires. This improves traction and steering precision on all surfaces. Additionally, the hardened rubber tread blocks ensure an exceptionally long life of 5 years.
Blizzak tires don’t offer the same dry pavement performance that summer tires do, but they’re still quite good. And given the level of safety that they offer for winter driving, it’s more than worth investing in a set next time the snow comes around. These are studless winter tires, which means they can be used year-round in all states without restrictions.
You can buy a set of Bridgestone Blizzak LM-25 tires from Discount Tire for $515 each.
Bridgestone Blizzak LM-25 tires are the best snow and winter tire on the market for the BMW M8.
About The Author
I've spent many years selling cars, working with auto detailers, mechanics, dealership service teams, quoting and researching car insurance, modding my own cars, and much more.Read More About Charles Redding