Nothing has ever went wrong with this car, and hopefully it won't. We have never had any major problems with this car, only the usual services etc. No pumps, compressors, or anything had to be replaced, escept for new brakes, added on 2005.
This car was bought new by my grandmother way back in 87 and is in pristine condition. It has never sit outside, and when the car was outside in the parking lot while she was somewhere, she always used her car cover to cover it up to keep from damage by sun, weather, or birds.
The cabin is very roomy, and the seats are quite comfortable, covered in red leather. There is almost as much legroom in the back as is in the front, natural for a car as great as a cadillac.
The Brougham she had before this car (a 1977 Model), was roomier, and of course much longer, but it was sold off back in 2005 at the death of her 2nd husband, who took the car as his daily driver after the purchase of her new DeVille.
This Cadillac has no rival in the fields of comfort, reliability, and style. It gets around 23-24 mpg on the highway, and about 18-20 in town, quite good for a car of this size, as opposed to the 77 Brougham (with a carburetor),which got around 12 or 15.
The HT 4100 engine is notorious for trouble, but so long as it is maintained, and serviced regularly and correctly, it is as reliable as any other engine out there.
My parents bought an 86 Cad coupe DeVille. They showed me at least $10,000 in repairs. The car was a lemon. I figured with all the repairs they did it must be perfect. Well the lemon never quit. I spent as much as they did and more because of over heating. It finally blew a head gasket and tore up the motor too. I had it rebuilt and after a few months it blew another head gasket. I practically gave that beautiful piece of junk away. I found out later the cooling system was never good, and the 4100 should have been recalled because when it over heated, the entire engine would torque enough to take out the main bearings and break the crank in half.
It cost me about $400 a month to keep it running because of the heat problem; that was the main culprit.
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