Wesll is quad vehicle with a unique 4-wheel leaning suspension which allows you to lean the vehicle at a 55+ degree angle.

Not only can at lean more than other quads or vehicles but it can overcome indoor and outdoor obstacles others simply can't as the gif below demonstrates.

the active suspension technology of the WESLL quad initiates roll by applying a camber torque to all four wheels through center mass c.g. shift. Individual wheel instability moments have a negligible effect on the stable-trim-state of the 4-wheeled system. source

Video