The rover is shown upside down just prior to adding the
wheels.  The yellow axles are connected to gears which
are driven by motors hidden inside.

Like the rovers that will be launched towards Mars in the
summer of 2003, this rover has six wheels.

A view from the front of the rover allows a glimpse of one
of its motors.

A picture of the full complete rover with camera and
"command module".  All parts, including the camera,
controller, motors and wheels came in the K'NEX kit.