What do you all think about buying cars which have had either a bottom end or complete engine rebuild. I've always been a bit suss about them but after seeing the amount of forum members who have been fine with rebuilt bottom ends, on BAs in particular, it's got me guessing twice. I seriously don't get why you see so many cars for sale which have had rebuilds less than 5-10k km ago. Dodgy rebuild or trying or recoup some $$? Opinions please