The Cadillac I purchased is my second Cadillac that continues to amaze me with the high quality of performance. I also have an eighty six Seville that has 158,000 miles and I have never had any problems on it until recently. The one problem I have noticed is the problem with oil leaks in both cadillacs that started at about 120,000 miles. Thinking it was changed in later years to a different type engine, but it gets pricey to fix as you usually have to drop the engine to get it repaired. Other than that I would recommend and buy again. Excellent car.
My favorite feature in both cadillacs is the Bose stereo system. Wow. Great sound. Also love the heated seats in the winter. Outstanding. Oh, the fuel monitor system is the best.
My two suggestions are to have the problem with the oil leaks looked at and the steering,joints need looking into.