I have an 02.. major differences between the newer ones and the 2000-2001 are the new style headlights, change in design on the S62 to use 5W30 instead of 10W-60, WS NAV,late 02's wired for bluetooth, newer style steering wheel, and some new colors. I say go for 02 and after as they fixed quite a few bugs.. I've put over 15K on the M5 since I picked it up about 10 months ago and absolutely love it..