Make sure the AC works properly, the evaporators tend to leak and are a real pain to replace. The engine and turbo are very strong and reliable. The sunroof can leak in a carwash and the fix for that is not fun.

I bought a badly maintained 1996 and it cost me about $1200 in parts to get it reliable. A few of those dollars went into deleting the SAS and recovering the front seats. If you can't wrench it yourself, it will very expensive at a shop.

Check the timing belt replacement interval (70K) as well as the cabin filter (if it has one).

The turbo 850 is really fun to drive! Watch out in wet/slippery road conditions, there is enough torque to make both front wheels break loose at about 4000 rpm in 1st gear!!

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Keeping it running is better than buying new