McLaren unveils 620R road-legal track car

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McLaren has introduced its 620R. An evolution of the competition specification McLaren 570S GT4, the 620R aims to deliver true motorsport credentials in a fully road-legal package. Just 350 of the coupe will be built.

“The McLaren 570S GT4 is a first-class GT race car that, having won races in every championship it has competed in since its first appearance in 2017, is attracting an increasing number of customer racing teams,” explained Mike Flewitt, CEO, McLaren Automotive. “Now, in response to repeated customer requests, we have homologated that class-leading package for the road in the new McLaren 620R.”

Equipped with the same M838TE 3.8-liter twin-turbocharged V8 engine used in the GT4 car, freedom from racing regulations has allowed the engine ECU and turbo management to be reconfigured to achieve 610bhp and torque of 620Nm. The combined output helps to deliver benchmark performance figures of 0-100km/h in around 2.9 seconds. Maximum speed is 322km/h.

Fitment of two-way manually adjustable coilover dampers adds to the 620R’s motorsport credentials. The dampers also help to bring weight down overall, being more than 5kg lighter than the regular Sports Series units. The suspension features lightweight aluminum wishbones and uprights and stiffer anti-roll bars.

Stopping power comes from the manufacturer’s lightweight braking system, which comprises carbon ceramic discs (390mm front, 380mm rear) and forged aluminum brake calipers. The 620R runs as standard with Pirelli P Zero Trofeo R semi-slick tires.

Customers will receive the 620R with the carbon-fiber rear wing set to the least aggressive of its three available angles, optimizing front/rear balance for road driving. The more aggressive angles increase rear downforce still further, contributing to a maximum of 185kg and enabling quicker circuit running.

The front fender, splitter and hood have also been redesigned – the splitter retaining pronounced aero blades and cut-out – while the carbon-fiber hood has twin nostrils to aid downforce and clean up the airflow over the top of the car.

Downforce at the front of the car is further increased by dive planes that create vortices of low-pressure air at track level and help accelerate airflow along the car’s sides, as well as significantly aiding brake-cooling. The dive planes contribute up to 30kg of downforce as part of the 65kg delivered by the full-frontal aero package.

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Andrew Charman is a regular contributor to PMW. He has been working in motorsport for more than 35 years, specialising in Touring Cars and US motorsport, particularly NASCAR.

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