The newest vehicle in McLaren’s artillery, the 675LT, arrives this week - but unless you’ve already got your name on the list, you may have to admire this one from afar.
Positioned to sit at the top of McLaren’s Super Series range, the 675LT is lighter, faster, and more powerful than the 650S on which it’s based. Production is limited to just 500 units worldwide, with only 15 to be delivered in Australia.
McLaren describes the 675LT as its most track-focussed, yet road legal, series production vehicle yet.
Crucially, the 675LT is able to bolt from 0-100km/h in 2.9 seconds, onto 200km/h in 7.9 seconds, reaching 300km/h in 22.5 seconds. Top speed maxes out at 330km/h.
The 3.8 litre twin-turbo V8 engine has been thoroughly re-engineered, and features over 50% new components. Power is rated at 496kW (or 675PS, hence the name) available at 7100rpm with peak torque of 700Nm available in second gear onwards between 5500rpm and 6500rpm
Torque in first gear is limited to 600Nm to assist traction, and no doubt transmission longevity.
The 675LT features unique turbochargers. Although the same size as the turbos used in other Super Series vehicles, they feature machined, rather than cast compressor wheels for optimised air flow.
For those concerned about their environmental impact, fuel consumption is rated at 11.7l/100km and CO2 at 275g/km.
The LT sheds 100kg of weight over the 650S. The use of carbon fibre body panels represents the biggest weight saving, with some 35kg saved compared to aluminium or composite alternatives.
The chassis, likewise has been lightened by 30kg, while weight has also been trimmed from the powertrain, interior, glazing, and even the wiring harness.
Power is delivered to the rear wheels via McLaren’s seven-speed SSG transmission with recalibrated Normal, Sport and Track modes. Shift times have been reduced by half.
Full and semi automatic modes are available, as well as a full manual mode, operated via carbon fibre rocker switches mounted to the steering wheel, and derived from the McLaren P1.
Stability control is an all new system, which includes Dynamic mode, handing the driver greater control over throttle and brake inputs. In Sport and Track modes, the ESC can be switched off entirely.
Brake steer is also included, initially developed for use in Formula 1, but subsequently banned. It alcan brake an inside rear wheel to help bring the vehicle’s nose into the apex of a corner - a similar effect to a torque vectoring differential, but integrated as part of the ESC system.
Also recalibrated for the 675LT, the ProActive Chassis Control system features lighter springs that are 27% stiffer up front and 63% stiffer at the rear, with adjustable Normal, Sport and Track damping modes.
Front suspension uprights and wishbones have been derived from the P1, saving weight and providing a 20mm increase in track.
Front and rear suspension systems are attached to the carbon fibre MonoCell, as used in the 650S, which weighs just 75kg, yet is 25% stronger than aluminium.
Two unique alloy wheel designs are offered on the 675LT, both measure 19x8.5 inches at the front and 20x11 inches at the rear. The ten-spoke ultra light-weight wheel design is the lightest yet offered by McLaren.
Both wheel options are wrapped in specially developed Pirelli P Zero Trofeo R tyres as standard, with less track-focussed Pirelli P Zero tyres available as a no cost option.
Inside the driver-focussed cabin the 675LT features reduced sound deadening and carpet, and liberal usage of Alcantara trim which saves 3.5kg over leather.
Deep-set carbon fibre racing seats, as seen on the P1, provide a further 15kg weight saving and grip the driver like a bear.
McLaren’s regular door mounted climate controls have been replaced by touchscreen controls in the centre display. Air conditioning has also been deleted and saves 11kg, but can be specified as a no cost option.
Satellite navigation, DAB radio and a lightweight Meridian four-speaker sound system are also standard.
The centre screen can also display information from the standard McLaren Track Telemetry system, with real time track statistics available and downloadable GPS-based post-drive analysis.
Options include Nappa leather upholstery, heated, electrically adjustable sports seats, electrically adjustable steering column, and a vehicle lift system.
For track use, a Club Sport Pack adds a titanium roll hoop, four-point harnesses and a fire extinguisher, while the Club Sport Professional Pack provides those features, plus additional carbon fibre detailing on the lower side intakes, front wing end plates, wheel arches, wing mirrors and side intakes.
Of course, no McLaren could wear the LT moniker without the requisite longtail. In this case the airbrake, some 50% larger than other Super Series cars, yet lighter due to it's carbon contruction, gives the 675LT with its elongated rear.
The 675LT is available as a coupe only, and is priced at $657,000 on road. All 500 units globally have been sold.
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