Psm is a more intelligent system thats brakes any wheel so you stay on course during a turn. The old traction control just brakes one of the spinning rear tires when accelerating out of a turn or off the line. Bose and Hi-Fi are not the same...the Bose has a subwoofer box in place of the compartment area and bose speakers which lends to better sound and both systems come with a windstop I believe. The "sport package" comes with cruise, hi-fi, bigger wheels,...and maybe one or two other things and I can't recall off the top of my head.
Last edited by Adam; 02-06-2006 at 07:30 PM.
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