Take your daily driver out in a dirt lot and make a sharp U turn at low speed. Then go back and look at your tire tracks. When Ackerman is off, one tire will dig up the dirt much more than the other. It also causes tire squeal in parking lots. You can really hear it squeal in concrete parking structures.
My '04 Tahoe below is bad. After driving forward, I completed the circle and positioned the Yukon back where I started. You can't even see where the LF tire rolled on the dirt, but the LF tire dug up the dirt a LOT. It leaves rubber marks on pavement when I do this test.
