About This INFINITI Q50 Premium 2015 Build
We love featuring real builds from real owners. This INFINITI Q50 Premium 2015 sits on a set of 18×9.5 / 18×9.5-inch Cosmis-Racing XT-006R wheels, and the result speaks for itself.
The owner chose Cosmis-Racing for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of INFINITI Q50 Premium builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Cosmis-Racing XT-006R creates a look that balances aggression with elegance.

Fitment Breakdown: Cosmis-Racing XT-006R on the INFINITI Q50 Premium 2015
I stood right there at the show when this Q50 pulled in. The 18x9.5 setup on all four corners transforms the entire silhouette of this sedan. Running a +10 offset pushes these wheels way out toward the edge of the fenders.
That +10 offset is aggressive for an INFINITI. You get a massive amount of poke if you do not dial in your camber correctly. The wheel sits proud of the body line, demanding attention from everyone on the street.
Cosmis nailed the spoke design on the XT-006R. The six-spoke pattern clears the stock Q50 calipers with room to spare. You will not need any spacers to clear the brakes on this Premium model.
The barrel lip depth on these wheels adds a raw, track-inspired aesthetic. It makes the Q50 look like a drift machine rather than a grocery getter. I love how the design bridges that gap between luxury cruiser and street brawler.
Since the owner bolted on coilovers, the wheel gap is officially dead. The tuck is tight, but you must watch your inner fender liners. A hard bump could easily chew up your tires if you leave the fenders stock.

The hub bore fits the Q50 platform like a glove. I recommend running hub-centric rings to ensure you stay vibration-free at highway speeds. Do not skip this step or you will hate the ride quality.
You definitely need to roll your fenders for this specific setup. Without that extra clearance, the edge of the wheel will catch the sheet metal on heavy compression. It is a necessary sacrifice for that flush, aggressive stance we all crave.
What We Recommend for INFINITI Q50 Premium 2015 Owners
If you want this look, prepare to do some work on your suspension. Coilovers are mandatory to pull off an 18-inch wheel on this car. Anything higher than stock height will look awkward with these wide wheels.
I usually prefer a square setup for tire rotation. Running 18x9.5 all around makes the car handle predictably in corners. You get a balanced feel that inspires confidence when you push the Q50 hard.
If you want a safer offset, aim for something closer to +25. It keeps the wheels tucked slightly more while still giving you that wide look. You can avoid some of the fender rolling drama with that adjustment.

Watch your tire stretch carefully. A light stretch looks good, but too much will ruin your handling and safety. Find a tire that protects the rim edge without looking like a rubber band.
Many guys make the mistake of buying wheels without measuring their suspension travel first. You need to know exactly how much room you have before the tire hits the coilover perch. Measure twice and order once to save your wallet the pain.
Style and Build Analysis
The Black Machined finish on these wheels provides a sharp, industrial contrast. It cuts through the paint of the car and draws your eye directly to the rolling stock. It feels purposeful and tough.
This design makes the Q50 look much lower than it actually is. The spokes draw your eyes outward, making the car appear wider and more planted. It is a masterclass in visual proportion.
I have seen plenty of Q50s on generic wheels, but this build hits different. The XT-006R has a unique personality that refuses to blend into the background. It turns a standard sedan into a piece of art.

The light dances across those machined edges whenever the car moves. It breaks up the darkness of the black paint, preventing the wheels from looking like two black holes. It is a calculated, stylish choice.
Compared to other builds I have featured, this one shows restraint. The owner did not overdo the modifications, choosing instead to let the wheels define the car. It is clean, bold, and incredibly effective.
Why We Love This Build
This Q50 sits perfectly on the asphalt, vibrating with potential energy. The Black Machined finish pops against the deep paint whenever the sun hits the wheel faces. It creates a bold, aggressive profile that makes the factory design look tame.
Seeing those XT-006Rs fill the arches makes my heart race. It captures the essence of what car culture should be: bold choices and a refusal to settle for stock. This car does not just drive down the road; it owns every inch of the pavement.
This is the kind of build that makes you want to go back to the garage and start turning wrenches. It represents the perfect harmony between a luxury platform and a raw, performance-oriented aesthetic. Your Q50 deserves this level of aggression.

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: INFINITI Q50 Premium 2015
- Vehicle Color:
- Wheel Brand & Model: Cosmis-Racing XT-006R
- Wheel Size: 18×9.5 / 18×9.5
- Offset: 10 / 10
- Wheel Finish: Black Machined
- Tires: Falken Pro G5 Sport A/s 235/40 25.4″x9.3″ / 235/40 25.4″x9.3″
- Suspension: Coilovers
Before You Buy: Fitment Checklist

We talk to INFINITI Q50 Premium owners every day. These are the questions we hear most before they pull the trigger on new wheels.
Will 18×9.5 / 18×9.5-inch wheels fit my INFINITI Q50 Premium? 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 INFINITI Q50 Premium owners run 18×9.5 / 18×9.5-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.



