E46 model year changes
I could use some help from an experienced E46 M3 person. I'm thinking of buying a 2002 coupe with just 34K miles on it, but I have heard that there were some model year changes from 2004 on that make the early years less desirable. I'm not talking about the engine recall for oil pump and crank bearing. The changes I've heard about have been described as "refinements," which I'm guessing includes things like suspension. Are there significant differences between a 2002 and 2004-2006? Is there really any reason to avoid a 2002, assuming it passes a professional PPI? Any weak points I should be sure and have the shop check? (I'm contemplating a long-distance purchase.) Thanks in advance for any assistance!