The 2007 Audi A6 sits in the modern luxury sport-sedan era, blending understated executive style with the kind of chassis balance and highway composure that made this generation especially appealing to drivers who wanted more than simple transportation. Tire selection matters here because the A6 uses radial fitments in three distinct sizes: 225/55R16, 245/45R17, and 245/40R18. That means the first step is confirming which wheel package is on the car before comparing tires. From straightforward blackwall performance options to redline and raised white letter choices in the larger sizes, the decision comes down to wheel diameter, intended driving use, and the look you want the car to carry.
Which Tire Size Is Right for The 2007 Audi A6
The 2007 Audi A6 uses three primary tire sizes, and the difference comes down to wheel diameter rather than bias-ply-versus-radial construction, since all three are radial fitments. Before choosing a tire, confirm whether your car is running 16-inch, 17-inch, or 18-inch wheels, especially if the car has been changed from its original wheel setup.
225/55R16 is a metric radial size in which 225 identifies the nominal section width in millimeters, 55 is the aspect ratio, R indicates radial construction, and 16 is the wheel diameter in inches. On the 2007 Audi A6, this size represents the 16-inch wheel fitment and keeps the sizing decision centered on matching the wheel first. Available choices in this size focus on blackwall BFGoodrich offerings in the g-Force Sport Comp 2 and g-Force Comp 2 AS series. This size makes the most sense when the car is equipped with the 16-inch wheel package and the goal is staying with that wheel diameter.
245/40R18 is a metric radial size with a 245-millimeter nominal section width, a 40-series profile, radial construction, and an 18-inch rim diameter. For the 2007 Audi A6, this is the 18-inch fitment, so selection starts with confirming that the car actually carries 18-inch wheels rather than a swapped set from another trim or aftermarket package. Product choice is broader here, including blackwall performance tires from BFGoodrich, Nitto, and M&H Racemaster, plus Pro-Trac Street Pro III versions with redline or raised white letter sidewalls. It is the right size to evaluate only when the wheel diameter and overall vehicle setup support the 18-inch package.
245/45R17 is a metric radial size where 245 is the nominal section width in millimeters, 45 is the aspect ratio, R marks radial construction, and 17 identifies the wheel diameter in inches. On the 2007 Audi A6, this size corresponds to the 17-inch wheel fitment and should be matched to the wheel on the car before comparing tire models. The available mix includes blackwall choices from BFGoodrich, Nitto, and M&H Racemaster, along with Pro-Trac Street Pro III options in raised white letter and redline form. This size is worth choosing when the car runs 17-inch wheels and you want meaningful variety in both tire character and sidewall presentation.
Sub-model fitment is straightforward here because the covered 2007 Audi A6 Base can use all three primary tire sizes. The important step is not distinguishing between multiple sub-model names, but confirming which wheel diameter is actually on the car before selecting a tire.
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2007 Audi A6 Base
The 2007 Audi A6 Base is associated with 225/55R16, 245/45R17, and 245/40R18 radial tire fitments. That makes wheel confirmation the key part of tire selection, followed by choosing the right product style, series, and sidewall treatment for how the car is driven and presented.
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 2007 Audi A6 Tires for Sale
Available 2007 Audi A6 tires center on radial choices from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. Depending on size, the comparison includes blackwall performance lines, drag-oriented offerings, and redline or raised white letter sidewall treatments in the 17-inch and 18-inch fitments.
Owners of a 2007 Audi A6 usually need to sort out wheel diameter first, then compare tire sizes, radial product choices, sidewall treatments, and practical fitment checks before driving. These FAQs focus on the exact decisions that matter for this A6.
Tire Size & Fitment
What tire size fits a 2007 Audi A6?
The 2007 Audi A6 uses three primary tire sizes: 225/55R16, 245/45R17, and 245/40R18. All three are radial fitments, and each one corresponds to a different wheel diameter rather than a different construction type.
The practical decision is figuring out which wheel package is on your specific car. A6 sedans in this year can appear similar while wearing different wheels, and aftermarket changes are common, so checking the wheel itself is more important than assuming one size applies to every car.
What size rim does a 2007 Audi A6 use?
A 2007 Audi A6 can use 16-inch, 17-inch, or 18-inch rims, depending on which tire size is on the car. The 225/55R16 size uses a 16-inch rim, 245/45R17 uses a 17-inch rim, and 245/40R18 uses an 18-inch rim.
Rim diameter should be confirmed before comparing tire models because the three sizes are not interchangeable across different wheel diameters. Reading the size molded on the current tire and verifying the wheel itself helps avoid ordering a tire that matches the car model but not the actual wheel setup.
Why does the 2007 Audi A6 have more than one tire size?
The 2007 Audi A6 has more than one tire size because it was fitted with different wheel diameters: 16, 17, and 18 inches. That creates three matching tire sizes, all within radial construction and all associated with the same model year and A6 Base coverage.
This is a wheel-package question more than a trim question. Once the wheel diameter is confirmed, the correct tire size becomes clear, and then the choice shifts to product type, sidewall style in the larger sizes, and whether the car is being maintained for everyday road use or a more specialized setup.
Choosing the Right Tire
What should I consider when choosing a 2007 Audi A6 tire?
Start with the correct size for the wheel on the car: 225/55R16, 245/45R17, or 245/40R18. From there, compare radial construction details such as tire series, approved rim-width range where stated, load figures where available, and whether the tire is aimed at general street use or a more specialized purpose.
Appearance can matter too, especially in the 17-inch and 18-inch sizes where blackwall, redline, and raised white letter options are available. Matching the tire to the car's use, visual style, and actual wheel dimensions will narrow the field much more effectively than choosing by brand name alone.
What sidewall styles are available for 2007 Audi A6 tires?
Sidewall style depends on tire size. The 225/55R16 choices are blackwall, while the 245/45R17 and 245/40R18 fitments add more visual variety with blackwall, redline, and RWL, which is a raised white letter presentation.
That means sidewall appearance becomes part of the buying decision only after the wheel diameter and tire size are settled. A blackwall keeps the look understated, while redline and raised white letter options give the larger-wheel fitments a more customized or nostalgic visual character without changing the need for proper size matching.
What brands offer tires for the 2007 Audi A6?
Tires for the 2007 Audi A6 are available from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, depending on size. BFGoodrich appears across all three sizes, while Nitto, M&H Racemaster, and Pro-Trac are represented in the 17-inch and 18-inch fitments.
Brand comparison is most useful once size is locked in, because not every brand appears in every wheel diameter. Looking at the tire series within each size will tell you more about the type of tire being offered than the brand name by itself, especially when the mix includes street, performance, and drag-oriented products.
Restoration & Appearance
Which tire should I choose for a period-style 2007 Audi A6?
A period-style choice for a 2007 Audi A6 starts with keeping the correct wheel diameter and matching tire size already on the car. Since this is a modern radial-fitment vehicle, the visual decision usually centers on whether you want a restrained blackwall look or a more distinctive presentation in one of the larger available sizes.
Most owners aiming for a factory-inspired appearance will keep the tire size aligned with the existing wheel package and avoid unnecessary changes in profile. If originality is especially important, compare the car against marque references, photos, or build documentation before choosing a more customized sidewall treatment such as redline or raised white letters.
How does tire construction affect the appearance of a restored 2007 Audi A6?
Construction is less of an appearance issue on a 2007 Audi A6 than it would be on an older collector car because the fitments here are already radial. The visual character comes more from the tire's profile, sidewall treatment, and the wheel diameter paired with the car.
That makes size accuracy especially important if the goal is preserving the A6's intended stance and proportions. A blackwall radial tends to keep the presentation closest to a clean executive-sedan look, while redline or raised white letter options in 17-inch and 18-inch sizes create a noticeably more customized appearance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2007 Audi A6?
Yes, modifications can affect tire fitment on a 2007 Audi A6 even when the tire size is one of the known A6 sizes. Aftermarket wheels, suspension changes, lowering, and alignment changes can all alter clearance and change which rim width or profile works comfortably on the car.
A car that has been changed from stock should be checked at the wheel, not chosen by model year alone. Confirm wheel diameter first, then review wheel width, visible clearance at the fender and suspension, and any signs of rubbing before moving from one of the A6's three established sizes to another setup.
What should I inspect before driving a 2007 Audi A6 on new tires?
Before driving a 2007 Audi A6 on new tires, inspect the wheel size, verify the tire size matches that wheel, and look over valve stems, wheel condition, and basic clearances at full steering lock. It also helps to confirm inflation and check that all four tires are seated and balanced properly.
Roadworthy condition involves more than fresh rubber alone. Examine suspension wear, alignment behavior, and any prior signs of uneven tire wear so the new set is not immediately compromised, and recheck pressure and lug security after the first miles if the tires were just installed.
How often should tires on a 2007 Audi A6 be inspected?
Tires on a 2007 Audi A6 should be inspected regularly, not only when replacement time arrives. Check them for uneven wear, cracking, cuts, bulges, pressure loss, and tread condition during routine service intervals and before longer highway trips.
The A6 can use three different wheel-and-tire packages, so regular inspection also helps catch issues that come from prior wheel changes or aging tires on a lightly driven car. Paying attention to wear patterns and air retention can reveal alignment, suspension, or wheel-condition problems before they become more expensive.
