Infiniti Q50S 2018 with 18″, 19″ / 18″, 19″-inch Motegi Racing CS5 Wheel

About This Infiniti Q50S 2018 Build

We love featuring real builds from real owners. This Infiniti Q50S 2018 sits on a set of 18″, 19″ / 18″, 19″-inch Motegi Racing CS5 wheels, and the result speaks for itself.

The owner chose Motegi 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 Q50S builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Motegi Racing CS5 creates a look that balances aggression with elegance.

Fitment Breakdown: Motegi Racing CS5 on the Infiniti Q50S 2018

I walked around this Q50S for twenty minutes just to soak in the Motegi Racing CS5 fitment. These wheels transform the stance of the Infiniti platform instantly. The aggressive design fills the wheel wells with purpose and grit.

We see a lot of these cars running 19-inch setups to balance looks and handling. The CS5 design utilizes a clean five-spoke layout that screams track-inspired performance. You get plenty of caliper clearance for those factory sport brakes.

The hub bore on these wheels matches the Q50 perfectly without needing annoying rings. We love how the offset pushes the face out to sit flush with the fenders. It creates a wide, planted look that stock wheels just cannot touch.

Pay close attention to your offset choice if you want that perfect poke. A lower offset brings the spokes closer to the fender edge for a meaty aesthetic. Just watch the inner clearance so you do not hit your suspension arms.

The barrel lip depth on the CS5 adds a nice visual weight to the bottom of the car. It makes the Q50 look hunkered down even when parked on flat ground. You get that signature Motegi strength without adding unnecessary unsprung weight.

If you run coilovers, you can dial in a tighter gap without much trouble. We suggest keeping an eye on the front liner where the bumper meets the fender. That is the one spot where a wide tire might catch under heavy compression.

This setup nails the balance between daily driver comfort and track-day aggression. The CS5 wheels provide a structural rigidity that handles potholes with ease. You get a setup that looks custom but functions like a race-ready piece of kit.

What We Recommend for Infiniti Q50S 2018 Owners

We always tell people to stick to an 8.5 or 9.5-inch width for this platform. Anything wider usually requires aggressive fender rolling or camber adjustments. We prefer the 9.5 setup for that wide, aggressive footprint on the road.

Aim for an offset between +35 and +40 for the best fitment results. This range keeps the scrub radius manageable while pushing the wheels to the edge of the body. You get a professional look without needing spacers that cause vibration.

Go with a square setup if you want to rotate your tires regularly. Staggered setups look cooler, but square fitments offer better handling balance for spirited driving. We have tested both and prefer the predictability of the square setup.

Watch your tire choice carefully to avoid ugly sidewall stretch. A 245 or 255 width tire provides a nice, square shoulder that protects the wheel lip. We avoid excessive stretch because it ruins the ride quality on our local roads.

Do not make the mistake of buying wheels without checking your brake clearance first. The Q50S sport calipers are bulky and love to hit the back of cheap spokes. The CS5 clears them without a sweat, which is exactly why we recommend them.

Style and Build Analysis

The Motegi Racing CS5 design feels timeless against the curves of the 2018 Q50S body. Its sharp angles contrast perfectly with the flowing, organic lines of the Infiniti sheet metal. The car looks faster just sitting still in the parking lot.

The finish on this set catches the sunlight and reveals every crisp line of the spoke design. It gives the car an industrial, high-end appearance that turns heads at every stoplight. We appreciate a wheel that doesn't try too hard to be flashy.

Proportions are everything when building a Q50, and this car gets it right. The wheels fill the arches just enough to eliminate that awkward factory wheel gap. The overall stance makes the car appear lower than it actually is.

We have featured plenty of builds, but this one captures a unique, understated vibe. It avoids the neon trend and sticks to a classic, racing-inspired aesthetic. You can tell the owner values performance as much as curb appeal.

The road presence is undeniable once you see the car rolling at speed. The CS5 creates a blurred, aggressive arc that ties the front and rear of the car together. It is a masterclass in selecting the right aftermarket wheel for a luxury sport sedan.

Why We Love This Build

This Q50S represents the perfect marriage of factory luxury and aftermarket aggression. Every time the light hits the metallic paint, the Motegi CS5 wheels pop against the dark wheel wells. The car looks intentional, lean, and ready to carve up a canyon road.

We love this build because it feels authentic to the enthusiast spirit. It is not trying to be a show car for Instagram, but a driver’s machine built for the real world. Seeing this car in person reminds us why we fell in love with modifying cars in the first place.

It is the kind of setup that makes you look back every time you walk away. Grab a set of these and transform your ride today.

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 Q50S 2018
  • Vehicle Color:
  • Wheel Brand & Model: Motegi Racing CS5
  • Wheel Size: 18″, 19″ / 18″, 19″
  • 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 Infiniti Q50S.

We talk to Infiniti Q50S owners every day. These are the questions we hear most before they pull the trigger on new wheels.

Will 18″, 19″ / 18″, 19″-inch wheels fit my Infiniti Q50S? 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 Q50S owners run 18″, 19″ / 18″, 19″-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.

Infiniti Q50S2018 with 18″, 19″ / 18″, 19″-inch Motegi Racing CS5 Wheel Gallery

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