Over time the bushes on your Lotus will degrade and develop more movement. This movement is due to age and the material used in many OEM bushes. By upgrading your bushes to a stiffer polybush or solid bush eliminates the initial movement of the arm when the grip generated by the tyre tries to develop a direction change in the car. Wirth the uprated bushes installed, the speed of direction change is dramatically increased as the car becomes much more responsive and intuitive with the driver improving the handling of the Lotus dramatically.