McLaren is always doing something impressive and new. So it shouldn't come as a surprise that the car company is pioneering a new construction material, although it's unlikely that it'll be revolutionizing the auto industry any time soon. That's probably got something to do with the material's tendency towards increasing the weight of the car by several hundred pounds.
That being said, it doesn't take away any points from the awesomeness of the new material. No more beating around the brick, the new material is Lego bricks.
McLaren built a 1:1 model of the 720S entirely out of the fun bricks, minus the tires. Lego tires are absolutely awful. But every other piece of the 280,000 plus bricks is entirely Lego branded goodness. Seriously though, Lego tires are awful, and Pirelli P Zero Corsas are not.
In case you needed any other reasons to love this new project, it was the first car to be built at the Goodwood event. That's because McLaren gave Goodwood attendees the opportunity to place the final 12,700 pieces on the car.