hi JT ,regarding the rear suspension i had a knocking sound which was more noticeable on low speeds on uneven roads,apparently its the top of the strut moving back and forth,side to side,i had both replaced 3 months ago under warranty,i had an end of warranty inspection today and have been told my o/s rear strut needs replacing again !!,it's going back in next week,im still unsure about taking out the extended warranty,the rest of the car seems ok,hope this helps