The LCD screen displays values from our sensors such as the encoders and gyros, which we're trying to use for traction control. There are 3 monkeys zip tied on top.
Here's a picture of our backside. The rear bumpers are 6 inches and we added some wood wedges to the frame to change the angle. You can also just barely see the LCD right behind the hitch.
Here's a YouTube link to a new Moonkey video mix (3/23):
http://www.youtube.com/watch?v=Ax9sFUZQLr8