Some things that have gone wrong was that the exhaust system had completely rusted away. Replaced for $600 because I know someone. Leaks a little oil, but don't know why. Dashboard has to be replaced because the sun has made it warped. But last, but not least the trunk leaked water, but was easily fixed.
I love this car. It's really fast, but I keep getting pulled over (I wonder why). Well even with stock parts this car can speed. But back seat is very small and cramped. Takes lots of gas bit again all I do is speed.
I have a 1993 MX6 and I agree they are very fast, and I have been reading up quite a bit and I think the reason the 93's are so fast is because they have a turbo built into the head. Its not the same turbo as many people think of, it is turbo pistons or something similar. You can hear it winding up at around 4,000 RPM's, it's a loud whining sound.
I have a 1993 Mazda MX6. I will agree it's fast, and I love it. What I can't believe is that you listed your problems with your MX6 and didn't say anything about the transmission. I've had to replace the one that came with it, and I had to have the one I put in it rebuilt within 3 months of me putting it in. (When I got the car in '03 it needed a new transmission, and not long after I put that one in I had to rebuild it because it started slipping) I just thought all MX6s had bad transmissions. I guess I know now that it's just mine.
I think all 93 Mazda MX6 owners would agree that when you're doing 65 mph it feels like you're looking for a place to park...lol...I haven't had any problems with my MX6 other than the transmission and a bushing/caliper on the front suspension. I think that the Mazda MX6 has been known for transmission problems. But at 150,000 miles.. it looks and drives like its hot off the lot!