well I sold my gs300 before xmas with the intention of going back to the ls400 ,after much searching and realising how scarce they are becoming I saw a nice 99 plate with the dhp pack like the one I owned 2 yrs ago ,I arranged to view and was pleasantly gobsmacked on my arrival to see it was infact my old car with another 25k on but still in ex cond ,only issue is a slight knocking noise when braking on front nearside only on braking not over bumps or anything ,any ideas on that one