Had not one thing wrong with the car for the 5 years that my wife and I had it.
First and foremost, we have been diehard Deville fans for many years. In fact, we still have ownership to 2 of them. One is a 1999 Deville Roadster, and the other is a 2002 Deville DHS. Our triple navy blue 1976 Sedan Deville was one of the best ones. It ran perfectly! To this day, my wife and I still talk about that car! Right now, we are in the midst of finding a triple navy blue 1976 Sedan Deville exactly like the one we had back in 1976. In fact, we are hoping to find one with not so high miles, but in excellent condition so that we could trace back the times that we had with it. Until then, we'll enjoy our newer Deville's.
Your '76 sounds like a gorgeous car! I just got a 1975 Sedan Deville from Laguna Hills CA, and imported it to New Zealand. It certainly turns a few heads over here! http://www.cardomain.com/ride/3020129