Pilot Bruno Senna is testing and reacting to the full-scale LEGO Speed Champions McLaren Senna and revealing all its building secrets! Checkout this video for the reveal of this amazing lifesize LEGO car build at the McLaren headquarters. This amazing LEGO car took 467,854 LEGO bricks and 10 workers working for 2,725 hours to be made, and it weights 3,348 pounds. Between the design, development, and build time, the whole project took a team of 42 about 5,000 hours and it includes staff from The LEGO Group and McLaren.