The manufacturer's claim of speed 70KM/H has already been checked and the model reaches more than 72KM/H! The size of 540 motor is large and powerful for a model of this size, since the two cell lithium battery that gives the buggy all its speed. To handle the high power, the model is equipped with aluminum drive shafts, station cups and central shaft. To help keep under control at high speeds is the front and rear differences, hobby grade suspension and 4 wheel drive system. The RC car comes fully assembled and complete with everything you need to get outside and hit the road except for 4 normal AA batteries for the remote control.