I bought this car used in October of 98 with 65,000 miles on it. 20,000 miles later and I haven't experienced any problems to speak of beyond normal wear and tear (brake pads and shocks).
I bought this car used for what it cost me to maintain my 87 Porsche 924S in 1987 & 88 ($6.5K). This car is driven very hard every day up and down the canyons from my house. Handles great, dirt cheap to run, maintain, and insure. Just wish it had a little more top end power. Can keep with most anything the germans can throw at you on the tight canyon roads, but as soon as the speeds pick up (in access of 75-80 mph) its handling becomes less mature. The car still makes me grin everyday, just at lower speeds. Considering picking up a new M2 this coming spring.
Does Mx5 handle better than your previous car, Porsche 924?
I am due to buy one of these cars, but I cannot decide which one.