Would like to hear from others who have purchased a used LR3. Things to look out for. I am looking at a 06 or 07 to take some of the sting out of the sticker price. Obviously a CarFax. I haven't seen much on head gasket leaks with the LR3. I know the Disco's had goofy things like the elect window assembly...which break after about 2 yrs of use...front diff issues. Anyway....thoughts??