We often go outside to test the vehicle by ourself, some times, when customers come to check the quality for their order, also will go out side riding with us. Most of time is riding one day on the road, to climb the hill test the torque, to ride long time to test the real range, to some not good road to test the shock suspension, to ride under the rain to see is that ok or not. We can not say our product is perfect, but we are going to perfect, following is one of the video we bring some our new models to climb the hill in our city