"Please note that this is still an alpha. It is very unfinished, and we are constantly fixing bugs and adding new features. Since this video was recorded and put together we've already fixed the bugs you may have noticed involving the breaking glass and lights"
Alpha access give you:
» Soft-body physics sandbox
» 5 detailed, customizable, destructible vehicles
» 6 terrains to explore and drive across
» Frequent free updates adding terrains, vehicles, features, gameplay, and bug fixes
» Full modding and content creation capabilities - make maps and vehicles, and script gameplay
» Use the built-in terrain editor and any 3D modeling, image editing, and text editing software