McLaren 675LT Coupé

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McLaren 675LT Coupé
Car information
Model Family McLaren Super Series
Year 2016
Make McLaren
Origin United Kingdom
Type Limited Production
Engine 3.8 L Twin-Turbocharged V8 (M838TL)
Power 666 hp (496 kW)
Torque 516 ft⋅lb (700 N·m)
Weight 2,993 lb (1,358 kg)
Layout Mid-Engine, RWD
Front Distr. 42%
Transmission 7-speed SSG DCT
Related McLaren 650S Coupé

The McLaren 675LT Coupé (McLaren 675LT) is a lightweight, limited production, higher performance variant of the McLaren 650S supercar, first announced in February 2015 and introduced at the 2015 Geneva Motor Show.[1][2]

The 675LT Coupé is the first LT model from McLaren, starting a series of limited-production high performance specials named in homage to the "Long Tail" McLaren F1 GT which was the final incarnation of the F1 road car built to comply with FIA homologation regulations for the 1997 F1 GTR.[2] A convertible variant, the 675LT Spider, was unveiled online in December 2015.[3] The third LT model, the 600LT Coupé, part of the Sports Series, was revealed online in June 2018.[4]

Overview[edit | edit source]

Design details[edit | edit source]

The 675LT, like with the 650S it is based on, uses a single-piece carbon fiber MonoCell chassis weighing 165 lb (75 kg), and carbon fiber is extensively used for further weight reduction and increased rigidity, resulting in a dry weight of 2,712 lb (1,230 kg). The 675LT also features a race-inspired front splitter that is 80% larger over the 650S's, and its rear "Longtail" Airbrake's aspect ratio has been raised by around 50%, ultimately resulting in the 675LT generating 1.4x more downforce than the 650S. The 675LT's interior lacks a carpet, exposing the carbon fiber MonoCell chassis, and the seats are now lighter racing seats that bring weight down by 33 lb (15 kg), while the larger rocker shift gear controls present in the car are inspired by those of the McLaren P1. In addition, the 675LT's glass panels are thinner by 1 mm, saving over 3 kg (7 lb).[5]

Sitting at the front end of the 675LT is a carbon fiber bonnet coated deeply in lacquer. The carbon fiber rear deck features two enlarged air outlets, ensuring the additional cool air that the more powerful M838TL engine can escape once heated. There is also a pair of circular exhaust outlets part of the 675LT's new titanium exhaust system. The 675LT's active "Longtail" Airbrake is not only 50% larger over the 650S for optimal downforce, but also lighter due to its carbon fiber construction. It is subtly integrated with a new carbon fiber rear deck when retracted, automatically increases aerodynamic stability at speed, and deploys more aggressively under hard braking to support the 675LT's carbon ceramic brake discs and reduce forward pitch. The carbon fiber rear diffuser is more aggressive for further downforce.[5]

The 675LT features significantly larger side intakes compared to the 650S, and new carbon fiber side skirts include an additional air intake to increase airflow and contribute further to the increased downforce generated by the front splitter, rear deck, "Longtail" Airbrake, and rear diffuser.[5]

The 675LT is specified with carbon fiber brake discs, with six-piston 394 mm (15.5 in) front calipers and quad-piston 380 mm (15 in) rear calipers. The "Longtail" Airbrake further reduces stopping distances by tilting upwards under heavy braking and features a unique control strategy to match the 675LT's capabilities.[6]

At the sides of the 675LT are bespoke Ultra Lightweight forged alloy wheels that are 800 grams lighter than even the P1's allow wheels. Supplied in a 19-inch front and 20-inch rear fitment, the distinct 10-spoke design is available as standard, while a Super Lightweight five-spoke design is available as an option for additional weight reduction. Both styles' designs significantly reduce unsprung weight for optimal driver feedback.[6]

The 675LT's suspension system, radically reengineered for extra driver involvement, is inspired by that of the P1 and boasts increased agility and a lower mass by 13.7 kg (30.2 lb). It also has a 20% wider front track than then-current Super Series models, 27% and 63% higher spring rates at the front and rear, respectively, and an increased rake that adds to 40% additional downforce.[6]

The M838TL twin-turbocharged V8 engine that is visible underneath the lightweight polycarbonate engine cover features lightweight carbon fiber components as part of the factory specification. Its carbon fiber induction plenum features a satin-lacquered finish and bespoke "675LT" logos, while the satin-lacquered carbon fiber engine bay panels underline the 675LT's race-bred theme. The 675LT's bespoke hard-anodized, vapor-honed aluminum oil and coolant filler caps are, again, inspired by the P1.

The 675LT was available with several options made to enhance both its driving dynamics and visual appeal. Key among them are the Club Sport Pack and Club Sport Professional Pack. The former was available in non-Federal markets and includes a titanium roll hoop, four-point racing harnesses, and a fire extinguisher, making it ideal for track-day goers. The Club Sport Professional Pack, produced in conjuction with renowned Chief Test Driver Chris Goodwin combines Club Sport specification with his own ideal equipment list, including carbon fiber front wing end plates, side air intakes, center rear bumper, wheel arches, and wing mirrors. Exclusive to the Club Sport Professional Pack is a carbon fiber "Longtail" Airbrake.[5]

The Club Sport Professional Pack also offered a bespoke color palette that included four colors: Titanium Silver, Storm Grey, Chicane Grey, and Onyx Black. 675LTs, regardless of the options included, came with five new exclusive colors: Chicane Grey, Napier Green, Delta Red (also the McLaren Senna's launch color), Tarocco Orange, and Silica White.[5]

Technical specifications[edit | edit source]

The 675LT is powered by a new variant of the McLaren M838T engine, named M838TL for the 675LT, which produces 675 PS (666 hp; 496 kW) and 700 N·m (516 ft·lb) of torque, up 25 PS (25 hp; 18 kW) and 23 N·m (17 ft·lb) from the 650S, and is paired to a rear-driving seven-speed dual-clutch automatic transmission. With dry weight in consideration, this results in a power-to-weight ratio of 549 PS (541 hp; 404 kW) per tonne. The M838TL in the 675LT features lightweight connecting rods, bespoke camshafts, and a new electronic recirculation valve, all of which maximize engine response, while the engine mounts are 300% stiffer for optimal connection between driver and road surface.[6]

Performance[edit | edit source]

McLaren provided the following performance figures for the 675LT:[7]

  • 0 - 100 km/h (0 - 62 mph): 2.9 seconds
  • 0 - 200 km/h (0 - 124 mph): 7.9 seconds
  • Top speed: 330 km/h (205 mph)
  • 100 - 0 km/h (62 - 0 mph): 30 m (99 ft)
  • 200 - 0 km/h (124 - 0 mph): 115 m (377 ft)

Appearance in the Forza series[edit | edit source]

Ever since its introduction in February 2015 (approximately four months after Forza Horizon 2 was released in October 2014), the McLaren 675LT Coupé has become a very highly requested car by the Forza community. Unfortunately, despite this, it has not made an appearance in any Forza game to date. However, it was featured in early concept art for Forza Horizon 4, particularly the game's Prologue sequence, which featured the Lamborghini Centenario LP 770-4 as the drivable car instead of the McLaren Senna that is now used.[8]

With the addition of a newer McLaren LT model (600LT), along with the 675LT's status as a legacy McLaren model and its appearance in early Forza Horizon 4 concept art, whether it will still appear in the Forza series is uncertain. If it were to be featured in Forza Horizon 4, it would be placed at either the top of Class S1 or the bottom of Class S2 and be classified as a Track Toy much like the 600LT that was eventually added in Series 14.

References[edit | edit source]