Around 190000 miles the rear main seal went out. Tranny was a little touchy. Other minor repairs. But what do you want at 200000 miles??
I loved this car to death. There are so many relatively inexpensive aftermarket mods you can do its crazy. Factory exhaust was wayyy to restrictive. Offroad H-pipe and Flowmasters took care of that. Watch out in the rain though, it's really easy to lose the back end if you don't know what you're doing. NEVER lost to a Camaro in my 'Stang.
My 1990 5L mustang LX did 14.2 in the quarter mile with a stock engine. The only thing that was changed on the hole car was the 2.73 gears to 3.73 gears. There are now a few more modifications done to the engine, but I have yet to find out what it will do at the track.
So do you.