usually nb miata are pretty reliable, as long as it's rust free, engine revs good (no hesitation), pretty much it's trouble free. See if the 2nd gear grinds from 1st to 2nd, that's sign of syncro wearing out. It's common on the NA NB miata, but on NB gear box, I believe it's suppose more robust compare to 1st gear NA ones. Check the soft top for leaks, easiest way is to use a garden hose to spray around the soft top area for like a good 3-5 minutes, then check for the rear carpet where the soft top sits for wetness. (carpet should be dry)
On miata.net, there's a pretty good used guide on that. Both of them are pretty detail and specific what to look for on a Used miata.
http://www.miata.net/faq/usedmx5.html
http://www.miata.net/faq/inspection_list.html
If you have any other question, feel free to ask me  |