The McLaren 675LT was launched in 2015 as a higher performance version of the 650S. Named the LT as a tribute to the McLaren F1 GTR "Long Tail," the 675LT is the quickest and most powerful member of the Super Series family. It is also the most exclusive, being built in a limited edition of only 500 units. A targa-top, Spider version was also launched, also limited to 500 examples, and both versions sold like hot cakes.

With the car still in production as of June 2016, but with no way to buy it, McLaren is rubbing more salt into the wound by launching an even more exclusive version of the 675LT. Dubbed Carbon Series LT, this new sports car is based on the 675LT Spider and was inspired by the carbon-bodied P1 the British firm unveiled at the 2016 Geneva Motor Show. The special-edition model is limited to only 25 units and, as it usually goes with such vehicles, all have been purchased by loyal customers already.

Production of the Carbon Series LT will begin this autumn at the McLaren Special Operations shop. First deliveries are expected before the end of 2016. McLaren didn't say whether the Carbon Series LT will also get a coupe version, but until that happens, let's have a closer look at this all-carbon Spider model.

Continue reading to learn more about the McLaren MSO Carbon Series LT.

What makes the McLaren MSO Carbon Series LT special

Produced in response to requests from McLaren customers captivated by the visual carbon-fiber-bodied P1, the Carbon Series LT is pretty much a standard 675LT with extra carbon-fiber. That's quite the big deal given that the regular Spider model already has the front bumper, front under body, side skirts, side intakes, lower side intakes, rear bodyside, rear fenders, rear deck, rear bumper, diffuser and "Longtail" Airbrake crafted from carbon-fiber in a gloss finish. MSO increased the 675LT's carbon components by around 40 percent, building the retractable roof and tonneau, A-pillars, engine hood and rear deck, side blades, front and rear wings, and even the fuel filler flap from the lightweight material. These elements also received high-gloss treatment, which reveals the inherent weave of the carbon-fiber. For added exclusivity, the Carbon Series LT also received the functional louvers of the 650S GT3 race car. Pretty cool huh?

The interior of the limited-edition sports car was carried over from the standard vehicle, but this shouldn't be an issue with the car's exclusive buyers, which will probably opt for special finishes and features. The only thing that sets the Carbon Series LT apart is the Track Telemetry pack -- usually an option -- which adds three track cameras.

Motivation comes from the same twin-turbo, 3.8-liter V-8 found in the 675LT Spider. The unit is rated at 666 horsepower and 516 pound-feet of torque, a 25-horsepower and 16-pound-foot increase over the 650S. Although the Carbon Series LT is slightly lighter thanks to the added carbon-fiber parts, performance remained unchanged according to McLaren. The sprint from 0 to 62 mph takes 2.9 seconds, while the 124-mph mark is reached in 8.1 ticks. Top speed is a mind-boggling 203 mph.

No word on pricing as of this writing, but given that the 675LT Spider retails from around $385,000, it's safe to assume that the Carbon Series LT fetches in excess of $450,000 before options.

McLaren 675LT Spider

The 675LT Spider was launched in December 2015 as the seventh member of the Super Series family, which already includes the 650S, 625C, 650S Le Mans, and the track-only 650S GT3. Essentially identical to the coupe version minus the removable top and revised C-pillars, it gets its juice from the same 666-horsepower, 516-pound-foot, 3.8-liter V-8. It needs only 2.9 seconds to hit 62 mph, identical to the coupe, and 8.1 ticks to reach 124 mph, two tenths slower than the fixed-roof variant.

Read our full review on the McLaren 675LT Spider here.