Form Follows Function

The Senna’s hyper-aggressive appearance is a distillation of McLaren’s ‘form follows function’ design philosophy. Relentlessly pursuing aerodynamic efficiency and high downforce, the designers cut and pared the shrink-wrapped body to reduce weight. This is recognisably a McLaren, but every line from front to rear is punctuated by a functional intake or vent. For the sake of ultimate performance. Everything you see reflects and celebrates the extreme engineering of the vehicle with brutal honesty.

The rear clamshell of the Senna is defined entirely by the demands of aerodynamics and cooling. A prominent ‘gurney’ flap ahead of the stepped louvres repels air, directing it around the sides of the vehicle and up towards the trademark rear wing. The resulting area of low pressure draws hot air from the high-temperature radiators and engine bay, while the stepped louvres progressively link airflow to the trailing edge of the vehicle and rear wing. This was radical design in 2018. It still is.

The McLaren Senna’s exhaust system is like no other. Beautifully crafted from lightweight Inconel and titanium, the unique ‘slash cut’ pipes exit through the rear deck. Painstakingly engineered to reduce weight, they are highly efficient and effective. Exhaust upthrust actually contributes to the car’s aerodynamic performance. And their distinctive positioning also helps engine cooling. The unmistakable exhaust sound intensifies as revs rise – 10dB for every 2000rpm – soaring with thrilling effect right to the engine’s rev limit.

The McLaren Senna uses the immensely strong, stiff and lightweight MonoCage III – complete with an innovative double-walled carbon fibre upper rear structure. It was naturally engineered for track work from the start, with stowage space for two race helmets and suits – a perfect blend of form and function. There is, of course, no room for additional luggage. Clearly reflecting the Senna’s unblinking track focus. Owners were able to specify six-point racing harnesses for both driver and passenger. And even an MSO Defined powered drink system – to ensure optimal hydration during extended circuit running.