If you prefer your rc cars to more on the adventurous side then the rock crawler xxl 81157 is definitely the beast for you the vac formed body is tough but incredibly light and sits atop the huge four wheel drive tires that provide perfect grip and traction over just about any surface you can think to take them hurtle over hills through mud and over rocks nothing can stand in your way the driving ability is improved even further by the front and back articulated spring suspension and t