Audi S4 Premium Plus 2018 with 20×9 / 20×9-inch Variant Radon Wheel

About This Audi S4 Premium Plus 2018 Build

We love featuring real builds from real owners. This Audi S4 Premium Plus 2018 sits on a set of 20×9 / 20×9-inch Variant Radon wheels, and the result speaks for itself.

The owner chose Variant for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Audi S4 Premium Plus builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Variant Radon creates a look that balances aggression with elegance.

Fitment Breakdown: Variant Radon on the Audi S4 Premium Plus 2018

I walked around this S4 for a solid ten minutes at the show, and the fitment is spot on. We are looking at a 20x9 setup square all around on the Variant Radon wheels. The 32 offset pushes these wheels right to the edge of the fenders without going overboard. It gives the B9 platform a much more aggressive, planted stance than the factory gear.

The 20-inch diameter fills the wheel wells perfectly, especially with those lowering springs tucked in there. A 9-inch width is the ideal sweet spot for the S4 hub. You get a nice flush look without compromising the scrub radius too much. The car tracks straight and doesn't hunt for ruts like some of the wider, lower-offset builds I see.

Caliper clearance on the S4 Premium Plus is always a concern with aftermarket wheels. These Radons clear the stock brakes with plenty of room to spare. You won't need to worry about the spokes catching the calipers or needing a spacer to push them out. It is a true bolt-on experience that keeps things simple.

The 66.56mm hub bore matches the Audi platform perfectly, so you won't deal with annoying vibrations or hub rings. We always push for that direct fitment whenever possible. It keeps the ride quality tight and predictable, which matters on a daily driver like this. No guessing games here, just precision engineering.

The spoke design on the Radon creates an illusion of a deeper barrel than you might expect from a 9-inch wheel. The lines flow directly from the center to the outer edge, making the wheel look larger than it actually is. It draws the eye outward, which balances the weight of the Audi’s body lines. It is a smart design choice for this specific chassis.

I inspected the fender clearance closely, especially with those lowering springs in the mix. You are tight up front, but you won't rub under normal street driving. If you hit a massive dip at speed, you might get a tiny kiss on the liner, but it is nothing to lose sleep over. This is a very livable setup for a car you actually drive to work.

What We Recommend for Audi S4 Premium Plus 2018 Owners

If you want this look, stick to the 20x9 square setup. It keeps your tire rotations simple and avoids any issues with the Quattro system. I see guys try to go staggered, but the S4 just doesn't need that. Keep all four corners identical for the best handling balance.

Offset is the secret sauce for any Audi build. We find that anything between 30 and 35 looks factory-plus without causing rubbing issues. If you go below 30, you will likely need to roll your fenders, and nobody wants to cut up their paint. Stick to the 32 offset if you want that flush, clean finish.

Tire choice matters just as much as the wheel specs. Don't go too wide on the rubber, or you will lose that sharp steering feel the S4 is known for. A 255/30/20 tire is the gold standard for this width. It provides a tiny bit of protection for the rim while keeping the sidewall looking clean and intentional.

Avoid the temptation to use thick spacers. If you pick the right offset from the start, you won't need them. Spacers just add another point of failure and increase unsprung weight. Do it right the first time and just buy the correct offset wheel.

Lowering springs are a great entry point, but keep your drop reasonable. We see too many cars slammed so low they lose all their suspension travel. This S4 sits at the perfect height where it looks mean but doesn't scrape on every speed bump. Respect the engineering of your daily driver while you dial in the stance.

Style and Build Analysis

The Titanium finish on these Radons is the real star of the show. It sits in that perfect middle ground between silver and gunmetal. It isn't as dark as black wheels, which often just disappear into the wheel well. Titanium catches the light beautifully and highlights the intricate spokes of the Radon design.

The visual impact is subtle but undeniably premium. Against the Audi’s clean, sophisticated body lines, the wheels look like they belong there from the factory. They don't scream for attention like neon or chrome might. Instead, they elevate the entire car by pulling the focus toward the rolling stock.

I love how the wheel design complements the S4’s front fascia. The sharp angles of the Radon spokes mimic the aggressive intake styling of the Premium Plus bumper. It’s a cohesive look that shows the owner thought about the big picture. Everything feels connected and intentional.

Compared to other builds I’ve seen this year, this one stands out for its restraint. Many enthusiasts throw on massive, busy wheels that overpower the car. By choosing a refined finish and a proportional size, this owner kept the Audi’s elegance intact. It’s a masterclass in tasteful modification.

Proportions are everything when you change your wheels. This setup changes the car’s personality from a sensible sedan to something far more sinister. It looks like it’s moving even when it’s parked. That is the hallmark of a great fitment build.

Why We Love This Build

This Audi S4 captures exactly what we look for in a street build. The Titanium finish glows under the shop lights, providing a sharp contrast against the paint. Every time the car rolls forward, the spokes catch the light and create a fluid, sophisticated motion. It feels refined, muscular, and perfectly balanced for the street.

We love this build because it doesn't sacrifice the daily driving experience for style. The springs provide that firm, planted feel without turning the cabin into a torture chamber. You can see the care in the fitment, from the way the tire sits flush with the fender to the way the hub sits deep in the barrel.

It is the kind of car that makes you turn your head every single time you walk away in the parking lot. Stop looking at photos and go get this setup on your car.

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 S4 Premium Plus 2018
  • Vehicle Color:
  • Wheel Brand & Model: Variant Radon
  • Wheel Size: 20×9 / 20×9
  • Offset: 32 / 32
  • Wheel Finish: Titanium
  • Tires: Michelin Pilot Sport 4 S 265/30 26.3″x10.4″ / 265/30 26.3″x10.4″
  • Suspension: Lowering Springs

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 S4 Premium Plus.

We talk to Audi S4 Premium Plus owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 20×9 / 20×9-inch wheels fit my Audi S4 Premium Plus? 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 S4 Premium Plus owners run 20×9 / 20×9-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Audi S4 Premium Plus2018 with 20×9 / 20×9-inch Variant Radon Wheel Gallery

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