Just twelve months after it was revealed as a concept car at the Geneva International Motor Show, the McLaren Senna GTR is revealed as a fully-fledged track machine – uncompromised, unconstrained and unshackled by road or racing regulations. McLaren Automotive’s most track-focused Ultimate Series car has evolved in key areas to deliver on its promise
Just twelve months after it was revealed as a concept car at the Geneva International Motor Show, the McLaren Senna GTR is revealed as a fully-fledged track machine – uncompromised, unconstrained and unshackled by road or racing regulations.
McLaren Automotive’s most track-focused Ultimate Series car has evolved in key areas to deliver on its promise of hypercar power and accessible handling with the aerodynamics and chassis of a thoroughbred racer. The result is a machine able to lap circuits faster than any McLaren outside Formula 1, providing its owners, of all abilities, with an unparalleled track driving experience.
The McLaren Senna GTR takes the road-legal McLaren Senna, already the lightest, most powerful and track-focused but road-legal car that McLaren builds, several steps further into the realm of ultimate performance. Without the constraints of road or racing regulations, the new Ultimate Series car is more powerful, weighs less, boasts an incredible 1,000kg plus of aerodynamic downforce and uses suspension derived from McLaren’s GT3 race programme.
Each new McLaren Senna GTR offers its owner virtually unlimited opportunities for personalisation by McLaren Special Operations Options, from paint colours in the MSO Defined portfolio to unique, multi-hued liveries as an MSO Bespoke commission that imagines a wholly individual expression of track car artistry.
The McLaren Senna GTR is powered by the most extreme version yet of McLaren’s 4.0-litre twin turbocharged V8 engine. The M840TR unit, with electronically controlled twin-scroll turbochargers, produces 814bhp with 800Nm of torque. The extra 25PS over the engine in the McLaren Senna has been achieved by engine control recalibration and removing the secondary catalyst to reduce back pressure. Removing the catalyst also heightens the aural experience of driving the McLaren Senna GTR.
With 825PS and a lightest dry weight of 1,188kg, the 694PS-per tonne power-to-weight ratio of the McLaren Senna GTR comfortably exceeds not only that of ‘regular’ McLaren Senna, but every other McLaren Automotive car for road or track currently in production.
Optimising aerodynamic efficiency and giving even more extreme track focus than that possessed by the McLaren Senna called for a holistic approach that subjected all aerodynamic aspects to intense scrutiny. The McLaren Senna GTR Concept showed the direction and the production-ready car now stands ready to deliver the most effective aero performance for track driving of any McLaren Automotive product. The McLaren Senna GTR generates astonishing levels of downforce, peaking at more than 1,000kg, a significant increase over the 800kg developed by the road-legal McLaren Senna at 250km/h.
The aero package of the McLaren Senna GTR delivers positive effects in high-speed corners but also in low-speed curves and under braking, making the car even less pitch-sensitive and enhancing stability in all situations.
The front splitter has been reprofiled and the rear diffuser reduced in size compared to the components on the 2018 GTR Concept, to optimise performance and meet the required track performance standards. Other changes in comparison to the Concept include new dive planes on the front corners and vortex generators either side of the car to ensure a stable airflow underneath.
The wing of the McLaren Senna GTR has been reprofiled and relocated, having been pushed backwards so its trailing edge is now outside the car’s footprint. This new, ‘free of road car restrictions’ position allows the wing to be coupled to the diffuser, making best use of the air flowing over the rear of the car.
Like the road-legal McLaren Senna, the McLaren Senna GTR features active aerodynamics in the shape of the active aero blades flanking the Low Temperature Radiator and an articulated rear.
An FIA-approved, lightweight carbon-fibre racing seat and six-point FIA harness is fitted, with a passenger seat available as a no-cost option. There is a satin finish to the carbon-fibre elements of the interior, the sills are covered in black carpet and the headlining is Alcantara. The folding instrument cluster and steering wheel from the road car have been replaced by race-spec items. The driver screen displays key data in the simplest forms, with a row of gearshift LEDs along the top edge.
Just 75 McLaren Senna GTRs will be built to customer order at the McLaren Production Centre in Woking, UK, with first deliveries commencing September 2019. Priced from £1.1 million plus taxes, all cars were allocated to owners within weeks of the order book opening following the McLaren Senna GTR Concept debuting at the 2018 Geneva International Motor Show.