The Latest McLaren Artura GT4 Eliminates Hybrid System, Drops 286 Pounds

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By Car Brand Experts

Debuting at this weekend’s Goodwood Festival of Speed, the new McLaren Artura GT4 race car undergoes significant alterations to conform to regulations for both amateur and professional sports car racing. Originally featuring a twin-turbo, 120-degree V6 engine with hybrid assistance in the road-going model, the race-ready Artura now operates without the hybrid element in this updated iteration.
The latest McLaren sports car joins the marque’s lineup of GT race cars, now available for purchase by individuals or racing teams to compete in various global championships. Governing bodies such as FIA-sanctioned sports car championships do not permit hybrid or all-wheel-drive systems due to cost considerations, trackside support constraints, and the aim for fair competition across brands.

mclaren artura gt4
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The Artura GT4 now eschews the hybrid powertrain, featuring an axial flux e-motor powered by a 7.4-kWh battery. The absence of the hybrid system results in shedding an impressive 286 pounds, a significant weight reduction compared to the street version with extra 94 horsepower and up to 166 pound-feet of torque. Notably, the new Artura is 220 pounds lighter than its predecessor, the 570S GT4. Since the Artura is inherently rear-wheel drive, unlike the Acura NSX, no modifications were needed in this aspect.

The GT4 features McLaren’s innovative Carbon Lightweight Architecture monocoque, not only reducing weight but crucially enhancing rigidity over the previous model. Rigidity is paramount for GT racing given the diverse track types, from bumpy street circuits like Detroit’s Belle Isle to top-tier circuits such as the Circuit of the Americas or Monza. Monocoque stiffness is also vital for safety purposes, as it absorbs impact in the event of a crash.

Drivetrain adjustments for GT4 cars typically involve slight modifications to maintain fairness in racing. The Artura GT4 incorporates changes like shorter gear ratios, a mechanical limited-slip differential, Bosch Motorsport control system, modular motorsport electrical harness for electronics, specialized motorsport braking systems, a 720S GT3-style steering wheel with illuminated buttons, and additional safety features.

McLaren offers customization options for GT4 car components based on customer or series requirements, including additional driver aids such as a Tire Pressure Monitoring System, V-Box telemetry, Collision Avoidance System radar, and a data pack with various sensors for endurance racing needs. Endurance race participants can opt for factory-provided features like lighting, left-hand fuel fill, and air jack systems for different pit-lane scenarios.

Improving serviceability, McLaren ensures easier access to various car parts by making them removable or conveniently reachable. The detachable hood facilitates maintenance access to crucial components, while the rear bodywork can be removed without dismantling the rear wing assembly, enhancing maintenance efficiency. The automaker commits to providing full factory support and comprehensive service options for Artura GT4 customers, simplifying maintenance for such a high-performance machine.

The McLaren Artura GT4’s first appearance will be at the Goodwood Festival of Speed from June 23 to 26, where McLaren Factory Driver Rob Bell, winner of last year’s Timed Shootout Final in the McLaren 720S GT3X, will drive it up the renowned hill.

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