Experience the excitement of Formula E® racing with the LEGO® Technic™ Formula E® Porsche 99X Electric (42137) set - the ultimate gift for Porsche and racing enthusiasts aged 9 and up. With 422 pieces, this model car kit allows kids to build an authentic replica of the famous Porsche race car, complete with sponsor logos. But the fun doesn't stop there - using the 2 pull-back motors and LEGO Technic AR app, kids can recreate all the action of a real race day. With augmented reality, they'll get to immerse themselves in the role of a top Porsche Formula E driver, making decisions about energy management and working their way up the ranks. The app puts control firmly in their hands as they launch their car on the AR track in front of them. This is a great introduction to the world of engineering, as the set features realistic mechanisms that help kids explore the basics of mechanics. Measuring over 12 inches in length, this pull-back race car toy is the perfect size for play, and makes a great gift for any Porsche or Formula E® racing fan.