Prior to its official reveal last week, McLaren had been touting its new Senna hypercar, named after the late Formula One Driver Ayrton Senna and formerly codenamed as the BP15, as the most extreme road-legal car the British automaker has ever built, and it certainly lived up to that promise. Under the hood lies a naturally aspirated 4.0-liter, twin-turbocharged V8 with 789 hp and 590 lb-ft of torque which is the most powerful engine ever fitted to a McLaren road car.

No official specifications have been revealed yet, but McLaren claims the Senna can set the quickest lap times of any production McLaren to date. While the McLaren Senna may technically be a road car, one look at its aggressive, aero-friendly body and it's clear that this car was principally designed to set blistering lap times. Weighing just 2,641 pounds, carbon fiber is used extensively throughout, and McLaren says the Senna is built on new third-generation version of its renowned Monocage chassis. One of its most distinctive features is its massive hydraulically-powered rear wing acts as an airbrake and downforce generator.

Only 500 examples of the McLaren Senna are being made – and they were all sold out before the car even made its official debut. Except for one, that is. The final build slot for the McLaren Senna was sold at an auction during the reveal event, where it sold for a staggering $2.67 million. To put that into perspective, the McLaren Senna was originally sold for 750,000 GBP after taxes, which is around $1 million. To pay over twice the original asking price may sound crazy, but all the proceeds will go to the Ayrton Senna Foundation, founded by Senna's sister to support children in poor and developing countries. Every car sold will also benefit the charity foundation.