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The CMST McLaren 650S kit is a carbon-fibre styling and aero package for the 650S, designed to add detail and airflow management to McLaren's already aggressive supercar body. It covers a carbon front lip with canards, four-piece side under-skirts, a carbon rear-fender air intake, a rear lip, a rear wing and a rear shark-fin, finished here on an orange car with bronze two-piece forged wheels. The pieces sharpen the 650S's lower body and tail while keeping its dramatic, dihedral-door silhouette intact.

• Vehicle: McLaren 650S (coupe / spider)
• Material: carbon fibre, exposed twill weave
• Key pieces: front lip, front canards, four-piece side under-skirts, rear-fender intake, rear lip, rear wing, rear shark-fin
• Wheels: two-piece forged wheels in a bronze finish
• Finish: exposed carbon against orange paint, with a bronze wheel accent

What the kit is

The 650S is built around a carbon-fibre MonoCell tub and was designed from the start as a focused, aerodynamically active supercar — so the goal of an aftermarket kit is not to reinvent it but to add jewellery-grade carbon detail and a little more airflow control. CMST's package does exactly that: it concentrates carbon where the eye and the air both go — the front splitter area, the lower sills, the engine-bay flanks and the tail. On a car this purposeful, the right move is precision and finish, and that is what the kit delivers.

Piece-by-piece breakdown

Front lip and canards

The carbon front lip extends the 650S's splitter plane and adds a defined leading edge low on the nose, while a pair of canards (the source calls them "wind blades") sit at the bumper corners to help manage airflow as it meets the front of the car. On a low supercar, these front pieces both sharpen the face visually and help comb air around the body, and the exposed weave ties the nose to the rest of the carbon work.

Side under-skirts and rear-fender intake

The four-piece side under-skirts run beneath the 650S's sills, lowering the visual ride height and drawing a crisp carbon line along the flanks. At the rear quarter, a carbon air intake replaces the fender inlet that feeds the mid-mounted twin-turbo V8 — a functional area on this car, where the engine sits behind the cabin and relies on those side scoops for cooling air. Carbon is a sound choice here for both the look and its heat tolerance next to a hot engine bay.

Rear lip, wing and shark-fin

The tail carries the most carbon. A rear lip adds definition low on the bumper, a carbon rear wing increases high-speed downforce over the rear axle, and a rear shark-fin sits on the engine cover to help with stability and airflow direction. Together they give the 650S a more track-inspired rear without altering its fundamental shape, and the contrast of black carbon against orange paint makes the whole back of the car read as deliberate and finished.

Why carbon on the 650S

The 650S is unusual among supercars in that its core structure is already carbon — the MonoCell tub — so an aftermarket carbon kit is less about saving structural weight and more about two things: matching the car's engineering character and managing airflow at the extremities. Visible carbon weave on the splitter, skirts, intakes and wing reads as honest on a car built around the material, where painted plastic would look like an afterthought. Carbon's stiffness also helps the aero pieces hold their shape under load, and its heat tolerance suits the rear-fender intake that sits beside a hot turbo engine. The kit's job is precision and finish, and carbon is the material that delivers both on this car.

Wheels, finish and the exhaust note

The build is finished on two-piece forged wheels in a bronze tone, a deliberate accent against the orange paint. Two-piece forged construction lets the wheel be built from a separately forged centre and rim, which allows precise fitment and a strong, light wheel — the kind of detail that matches the rest of a carbon supercar build. The bronze finish is the styling choice that warms the orange-and-carbon palette and stops the car looking monochrome.

This particular car also runs an aftermarket exhaust system in place of the factory unit, which is a common pairing on a 650S build: the carbon kit changes how the car looks, and a freer-flowing exhaust changes how it sounds, so the two upgrades tend to be done together. We make no specific power or decibel claims for that combination here — exhaust gains depend on the system and tune — but the visual and aural changes are what give a build like this its complete, finished character.

Fitment and finish in Australia

Carbon aero on a supercar rewards expert fitting. We recommend professional fitment, dry-fitting the front lip, canards and under-skirts to set even gaps before final fixing, and confirming the rear-fender intake seats cleanly so engine cooling is unaffected. The front lip sits very low, so realistic ground clearance and care on driveways and speed humps are essential — many 650S owners pair a kit like this with a nose-lift system. Confirm the bronze forged wheels' offset and tyre sizing suit the car. Australian UV is hard on clear coat, so a ceramic coating or paint-protection film over the exposed carbon and the leading edges keeps the weave and paint looking their best.

Explore options for the car in our McLaren Body Kit collection, look at rear aero under McLaren wing options, tidy the sills with McLaren side skirts, and read about the brand's carbon process on the CMST page.

FAQ

Does the CMST kit fit both the 650S coupe and spider?

The carbon pieces are designed around the McLaren 650S body. Most parts (front lip, canards, under-skirts, front-of-tail aero) are common, but rear engine-cover items such as the shark-fin can differ between coupe and spider, so confirm your body style when ordering.

Is the rear-fender intake functional?

Yes. The 650S is mid-engined, and the rear-quarter scoops feed cooling air to the twin-turbo V8 behind the cabin. The carbon intake replaces that inlet, so it needs to seat correctly during installation to keep the engine breathing as intended.

Will the front lip clear Australian driveways?

The 650S already sits low, and the front lip lowers it further, so ground clearance is a real consideration. We recommend professional fitment at a sensible height and, ideally, using the car's nose-lift system; paint-protection film on the lip's leading edge helps guard against scuffs.

What does two-piece forged mean for the wheels?

A two-piece forged wheel is built from a forged centre bolted to a forged rim, rather than cast as one piece. It allows precise width and offset choices and produces a strong, light wheel — well matched to a carbon supercar build like this one.

Does adding the wing make the 650S impractical?

No. The rear wing is sized to add high-speed downforce and bolts to the engine cover at suitable points; it changes the look and rear stability without making the car difficult to use. Owners who prefer a cleaner tail can run the rear lip and diffuser-area pieces without the full wing.

Planning a carbon build for your 650S? Explore fitment, aero and wheel pairing in our McLaren Body Kit range and talk to the AME Motorsport team about specifying yours.