There is a nice simple to understand article on calculating CP and CG for lsr vehicles in the tech and FAQ section of this website. It was written by Bill Dube' and Eva Hakansson who campaign the electric side car streamlined motorcycle and are engineers as well. If an airplane exceeds its design limits in yaw, pitch or bank (roll) it may stop flying. If a lsr vehicle exceeds its design or safety limits in yaw, pitch or roll it may start flying. The 'numbers' as Jeff states are useful tools in helping us understand where those limits may be for our hot rods that we strap on every summer. Running in a stiff cross wind if the steering wheel has to be turned down wind to stay on the track then the CP is probably behind the CG and the back of the car is being pushed down wind. If the steering wheel has to be turned up wind to stay on track- don't go any faster.
Thanks for participating in an important discussion.