Compared to the GT3 class which is the domain of the McLaren 720S, the GT4 has more restrictions on modifications. So the Artura GT4 retains most of the road car body, but with a large front splitter, front duct and rear wing to generate more downforce on the track. However, as GT4 rules do not allow hybrid powertrains, McLaren had to ditch electrified powertrain components since the road-going Artura is a plug-in hybrid consisting of a 2.9-litre twin-turbo V6 and an 8-speed dual-clutch transmission with integrated electric motor.
Like Ferrari’s next 296 GT3, the Artura GT4 therefore loses its electrification and is “content” with the V-6, with a 7-speed gearbox more suitable for competition. Elimination of plug-in hybrid system reduced weight by 130 kilos compared to the Artura road car, adding that the V-6 is lighter than the M838 3.8-liter twin-turbo V-8 used in the 570S GT4, with better throttle response and fuel economy. McLaren hasn’t quoted power, but we do know that the 2,993cc twin-turbo M630 V6 engine delivers 585bhp. The final output of the Artura GT4 will likely depend on the balance of performance calculations. The Artura GT4 features a mechanical limited slip differential.
Artura’s new McLaren Carbon Lightweight Architecture (MCLA) shell also makes entry and exit easier than the 570 GT4’s MonoCell design, helping to speed up driver changes, according to McLaren. Because the Artura GT4 is a customer race car designed for drivers of varying skill levels, it also benefits from a handful of driver aids. Race-tuned anti-lock brakes and traction control are standard, while tire pressure monitors, a collision avoidance system and ride height sensors are optional. Other options include V-Box telemetry, damper potentiometers that measure suspension position, infrared brake sensors, additional lights for night racing and a drink system.
to summarize
To enter the world of competition at McLaren, it is now the Artura GT4 which will assume this function, replacing the 570. Regulations require, the Artura circuit had to offload its rechargeable hybrid system.
