Audi S6 2013 with 18″, 19″, 20″ / 18″, 19″, 20″-inch TSW NEPTUNE Wheel

About This Audi S6 2013 Build

We love featuring real builds from real owners. This Audi S6 2013 sits on a set of 18″, 19″, 20″ / 18″, 19″, 20″-inch TSW NEPTUNE wheels, and the result speaks for itself.

The owner chose TSW for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Audi S6 builds come through WheelFront every month, but this one stands out. The combination of the exterior with the TSW NEPTUNE creates a look that balances aggression with elegance.

Fitment Breakdown: TSW NEPTUNE on the Audi S6 2013

I walked around this C7 S6 at the meet last week, and the TSW Neptune setup hit different. This platform demands a specific offset to clear those massive front calipers. We saw how the Neptune’s concave spoke profile clears the brakes without needing excessive spacer help.

The wheel diameter looks spot on for the S6 proportions. We usually push for a 20-inch setup here to balance the heavy body lines. Anything smaller looks swallowed by the arches, but these fill the space perfectly.

The hub bore on these TSW wheels matches the Audi center bore flawlessly. We hate dealing with plastic hub rings that melt or crack under track heat. This fitment feels rock solid and vibration-free at highway speeds.

I looked closely at the fender gap and the wheel arch alignment. The owner dialed in the offset to push the wheels flush with the fenders. It creates that aggressive, wide-track look that makes the S6 look ready for a sprint.

The barrel lip depth on the Neptune adds a layer of depth that flat-face wheels just lack. It catches the light differently as the car rolls through the parking lot. You really notice the craftsmanship in the spoke design when you stand right next to it.

We checked for rubbing spots near the inner liner and the fender bolt. With this specific suspension drop, the clearance is tight but safe. You get that slammed aesthetic without destroying your tire sidewalls on the first bump.

Running a slightly more aggressive offset on the rear creates a wicked stance. It gives the tail end a planted, muscular vibe. We love how this build avoids the common mistake of tucking the wheels too deep into the body.

What We Recommend for Audi S6 2013 Owners

Stick to a 20x9 or 20x10 setup if you want the best performance balance. Going wider than that invites steering geometry issues and tramlining on grooved roads. We have tested both, and the 9-inch width feels way more precise for daily driving.

Target an offset in the ET35 to ET40 range for the cleanest look. This keeps your scrub radius in check and protects your wheel bearings. We see too many guys push for low offsets that ruin the handling dynamics.

Run a square setup to keep your Quattro system happy. Staggered setups can confuse the sensors and eat through center diffs on these platforms. We prefer the ability to rotate tires and maintain consistent grip across all four corners.

Don't skimp on your tire choice when you mount these wheels. A high-performance summer tire completes the package and keeps the power planted. We suggest a 265/35 profile to keep enough sidewall for pothole protection.

Watch out for overly aggressive spacers that push your wheels past the fender line. It looks cheap and throws road debris all over your paint. Proper fitment should tuck just inside the lip when the suspension compresses.

Style and Build Analysis

The TSW Neptune finish provides a sharp contrast against the S6 factory paint. It looks clean, professional, and slightly menacing. We appreciate how the spoke geometry mimics the aggressive angles of the Audi front bumper.

The stance defines the entire character of this build. It sits low enough to look mean but high enough to remain functional. You can tell the owner spent hours dialing in the height to get that perfect rake.

This car holds its own against the flashier, widebody builds we see everywhere now. It relies on clean lines and quality hardware rather than gimmicks. The proportions feel factory-plus, like Audi should have released it this way.

The wheel design flows perfectly with the S6’s executive sedan silhouette. It retains the class of a luxury cruiser while signaling that this car has teeth. It stands out without trying too hard to grab attention.

We have featured plenty of Audi builds, but this one sticks in my mind. It represents the sweet spot of aftermarket modification. You get better looks and better handling without losing the car's soul.

Why We Love This Build

I cannot stop staring at the way the light dances across the Neptune spokes. Every time the car turns a corner, the wheels flash and emphasize the aggressive stance. It turns a standard C7 chassis into a masterpiece of modern German engineering.

The fitment sits so perfectly that it makes the car look like it was carved from a single block of metal. It has an undeniable presence that commands respect at every red light. This is exactly how you modify an Audi S6 without ruining it.

Seeing this build parked at the show reminded me why I love the car scene. It inspires us to keep pushing our own projects toward this level of perfection. This setup is the gold standard.

Full Specs Breakdown

Here is exactly what this owner is running. We break down every detail so you can replicate this build or use it as a starting point for your own setup.

  • Car Make & Model: Audi S6 2013
  • Vehicle Color:
  • Wheel Brand & Model: TSW NEPTUNE
  • Wheel Size: 18″, 19″, 20″ / 18″, 19″, 20″
  • Offset: Contact dealer

Before You Buy: Fitment Checklist

Wheel sizes explained - diameter, width, offset and backspacing guide
Understanding wheel sizing: diameter, width, offset and backspacing all affect fitment on your Audi S6.

We talk to Audi S6 owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 18″, 19″, 20″ / 18″, 19″, 20″-inch wheels fit my Audi S6? Yes, but fitment depends on width, offset, and tire size working together. A wrong offset means rubbing. A wrong tire size means poor handling. Always verify all three.

Do I need to modify my fenders? That depends on your offset and suspension. A conservative offset with stock ride height usually fits without modification. Go aggressive and you may need to roll or pull your fenders.

Can I daily-drive this setup? Absolutely. Thousands of Audi S6 owners run 18″, 19″, 20″ / 18″, 19″, 20″-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Audi S62013 with 18″, 19″, 20″ / 18″, 19″, 20″-inch TSW NEPTUNE Wheel Gallery

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