For fans of extreme off-road action, the LEGO Technic 4×4 Mercedes-Benz Zetros Trial Truck is not just a mean RC machine, it’s a big build. With 2110 pieces, builders get 4 functioning doors and hood, independent 4-wheel suspension and other real-deal features. Once built, connect 6 AA batteries and use the LEGO Technic app & bluetooth control to drive this dirt-blasting Benz!