The life-size replica of the McLaren P1™ is made from 342,817 LEGO Technic elements, weighing ~1220 kg. The car has fully functional steering, making it the first LEGO big build ever capable of steering and taking on racetrack corners. The build has an electric motor consisting of LEGO Technic Function batteries and an electric car battery, allowing it to travel further than any other LEGO model before it.

The full size supercar appeared with help from 23 specialists from design, engineering and building from the LEGO group and McLaren Automotive, with 8344 hours of development and construction and requiring 393 different types of LEGO Technic elements.