The air chambers in the suspension is about the only real problem area. The air ride pump and ride height sensors are quite reliable, so long as they are reasonably rust free.
The air spring chambers will wear out at approx. 120k miles. They are very easy to replace, and you can save lots of money if you do it yourself, but the parts tend to cost $150-250 at the dealer.
This is not too bad - everyone knows the air springs will go flat so the resale price of these cars is kept artificially low. The money you save on this offsets the replacement cost.
Otherwise, they are good and straightforward. The engine, transmission, and much of the chassis, steering and suspension are shared with the V8 Mustangs of that year, and are very reliable. Some people think the electronic goodies are occasionally troublesome, but I found them to be fine.
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