We're considering shopping for a GenIII 400 with about 60k, and live 500 miles from the nearest dealer. I'd like to think that it would run another 100k without nasty mechanical fractures. One serious problem is that the Mama is hell on squeeks and rattles (our reason to consider Lexus). I know they're quiet as new cars, but how silent are your 150-220k darlings? If it rattles, you know who has to dive into the dash or body panels, which is scary on such a nice, finished auto. On another thought, how many feet (miles?) of copper wire does a GenIII carry? Thanks, Ted