I'm told by my mechanic that 3 of the 4 wheels on my 10-months-old '07, 4WD Tucson require alignment. He also says that, normally, only the toe-in is adjustable on Hyundais, but that there is a $90/wheel kit on the after-market that would allow camber adjustment as well. Does that sound reasonable/un-reasonable to anyone on this list? Thanks!