Check out this link for a pretty decent list of changes by year:

http://auto.consumerguide.com/auto/u...x.cfm/id/2459/

On Sun, 02 Apr 2006 12:02:39 GMT, Christian Smith >
wrote:

>I'm considering buying a used Miata, and there is a fairly decent
>selection available locally (defined as within 75 miles) of 2000-2003
>model years with 20-30k miles on them.
>
>Has anyone ever done a year-to-year comparison of the Miata, tracking
>performance, comfort, available options, known defects, etc. Did some
>searching around but wasn't able to find such a comparison. I'd find
>this useful in deciding whether to choose one model over another.