It has been a year since we laid our eyes on the concept version of McLaren Senna GTR. Now, its final production specification has been revealed but we must point out that we are discussing about track oriented hypercar only. McLaren is claiming that Senna GTR is fastest vehicle from the company except the Formula 1 car. Power in the McLaren Senna GTR comes from twin-turbocharged 4.0 liter V8 engine which offers an output of 814 horsepower and 800 Nm of torque. In other words, track version offers an extra 25hp than road going version.
Engineers manage to extract an addition power with the help of engine control recalibration and removing the secondary catalyst to reduce back pressure. Even though it may not seem high, but we must factor in the weight of the supercar. Thanks to usage of carbon composite body and carbon-fiber safety cell, dry weight stands at just 1,188kg. It offers power-to-weight ratio of 684hp per tonne. Now, if we consider this figure, it is higher than any track or road car in production including McLaren Senna. The engine works in conjugation with seven-speed Seamless Shift Gearbox (SSG) dual-clutch automatic which is also present on road legal Senna including a Launch Control Function.
These three powertrain models are Wet, Track and Race. Wet setting is newest addition and receives support from the ESP and ABS electronic systems. McLaren said that it is intended for usage with wet tires. Just like any other track vehicle, aerodynamics of the McLaren Senna GTR has been taken into consideration. Peak downforce exceeds 1,000kg and uses suspension from GT3 race program. Only 75 units will be made and all of them are sold out. Price tag of each unit is £1.1 million excluding taxes and deliveries begin from September.