Ackerman steering and geometry + potential fix
http://en.wikipedia.org/wiki/Ackermann_steering_geometry
http://www.ihpva.org/Projects/PracticalInnovations/ACKERMAN.GIF
http://www.kartbuilding.net/racingkart/Old_Racing_Kart/ackerman.htm
http://image.absoluteastronomy.com/images/encyclopediaimages/a/ac/ackermann.svg.png
http://blog.kartbuilding.net/2007/07/12/steering-geometry-and-setup-for-go-karts/
http://www.diygokarts.com/vb/showthread.php?t=11760
http://www.diygokarts.com/vb/showthread.php?t=11798
http://www.rctek.com/technical/handling/index.php
http://www.diygokarts.com/vb/showthread.php?t=23785