sketchyphysics atv Free 3D model

This 3D model was originally created with Sketchup 6 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 use arrow to move, haha atv like a tank actully i copy from program tv named howe and howe tech then i make a mini ripsaw hope you enjoy but i need your creativity to buid the test pit :)