McLaren's most aggressive Sports Series model yet, the 600LT, joined the company's exclusive line of MSO cars with the Stealth Grey edition. Equipped with features from both the MSO Defined and MSO Bespoke catalogs, it made its debut on the Concept Lawn of the 2018 Pebble Beach Concours d'Elegance.

This is the first 600LT with MSO treatment, but definitely not the last of its kind to hit the streets with bespoke features inside and out. It's safe to say that most 600LTs -- production is "strictly limited," but an actual figure is not available yet -- will be ordered with MSO upgrades. Let's see what the Stealth Grey model is all about.

Continue reading to learn more about the McLaren 600LT in Stealth Grey by MSO.

What makes the McLaren 600LT in Stealth Grey by MSO special

As usual, MSO-specced McLaren's look identical to their standard siblings in terms of aerodynamics. This isn't an issue though, as the 600LT is far more aggressive than the 570S. The body boasts a massive number of aero upgrades front and rear, a big scoop on the roof, and new top-exiting exhaust that comes out through the engine hood.

Of course, the MSO treatment includes a few extra features, starting with the bespoke Stealth Grey paint. As the name suggests, it's rather dark and gives the car a stealthy appearance specific to military jet fighters. While the paint itself is far from special as far as hue goes, it's highlighted by Matt Black stripes flanked by thin strips of McLaren Orange on the hoods and roof. The same bright orange accents the front splitter, the side skirts, and the rear diffuser.

Another cool feature is the visual carbon-fiber roof scoop. Designed as a tribute to the old F1 GTR Longtail, this device operates as a fully functional air intake. Other MSO Defined options on the car include all three Carbon Fibre Upgrade packs available for the 600LT. These add door mirrors, exterior door inserts, front splitter, rear bumper, diffuser, and rear deck all made from carbon-fiber. The MSO Defined Carbon Fibre Roof and Cantrails, plus Carbon Fibre Front Fender Louvres also help to further reduce weight. The exterior is rounded off by ultra-lightweight, 10-spoke forged alloy Wheels with a Gloss Black finish.

Inside the cabin, McLaren installed the Super-Lightweight carbon-fiber seats. Available optionally on the 600LT, the race-inspired seats are taken from the Mclaren Senna. They are highlighted with orange contrast stitching that matches the stripes on the body.

McLaren also added the Carbon Fibre Interior Upgrade Pack that includes central tunnel and door insert panels, as well as the harness bar and six-point harnesses from the MSO Clubsport Pro Pack. Both the carbon scoop and the carbon intake hoses are visible through the headliner, while the headrests sport bespoke embroidery. The cabin upgrade is rounded off by discrete "600LT" etching on the gas pedal, a set of hand-painted keys, and a 12-speaker Bowers & Wilkins audio system.

Under the hood, the 600LT remains standard, so the twin-turbo, 3.8-liter V-8 engine cranks out the same 592 horsepower and 457 pound-feet of torque. That's an extra 30 horsepower and 14 pound-feet compared to the 570S, a bump that comes from reworked internals. The supercar needs 2.9 seconds to hit 62 mph from a standing start, while the 124-mph mark comes in 8.2 clicks. Top speed is rated at 204 mph.

Pricing information is not yet available, but with the basic 600LT priced from around $220,000, an MSO version with so many options should cost close to $300,000, if not a bit more.

Further Reading

Read our full review on the 2019 McLaren 600LT.

Read more McLaren news.

Read more Pebble Beach Concours d'Elegance news.