Have just purchased an IS 250 Se-I O8 model 6200 miles on the clock. It drives well, although I have a few issues with the clutch. It ocassionally makes a rattling noise when taking off in first gear and when I release the clutch in neutral it makes a whining sound - like a worn release bearing sound that I have had in other cars over the years when the bearing was worn. Is this sound normal for an IS 250? There is also a faint rattle from the engine and they are supposed to be so quite!!!! Any views please.