Here's a video of one of our drivers practicing driving our practice robot thru the tunnel. The practice robot is exactly the same size as our competition robot including bumperes. It does not have a kicker nor a CRIO control system. We use a 2.4 ghz Futaba spread spectrum radio control airplane system. It's a lot easier to set up and provides excellent control. The only thing we can't do is autonomous.
http://rambotics.com/video6.html