But the P11 doesn't use the panhard rod. Read further...P10 WRC said:this quote sums it up perfectly, this is really anoying on my P11
"Side-to-side location on beam axles is most commonly done with a Panhard rod--a long link that attaches to the car on one end and the beam on the other. The most obvious problem with this arrangement is that it is asymmetrical. Since the beam is located by a link that swings through an arc, there is a slight side-to-side movement of the beam as the suspension moves up and down. This is not at all good for high-speed stability."
Both of these problems can be cured by using a more complex Watts linkage, but those are significantly more bulky, and would take up too much trunk space for a luxury sedan like the G20. Instead, the multi-link beam uses what is known as a Scott-Russel approximate straight-line mechanism. This clever arrangement uses two rods to create a link that moves straight up and down. This mechanism requires that one of the attachment points be able to slide, but since this sliding is over a very short distance, Nissan simply designed a special bushing that is extremely soft in the direction the rod must slide, but stiff in any other direction.