I bought my Cadillac Eldorado with 28,000 miles on it in 2003. I just love to drive this thing. Its performance and comfort are great. I did get an extended warranty when I bought the car, which has paid for itself. I had to replace a swaybar. Other than that, I've had to perform just normal maintenance, like tune ups, plugs and wires, oil changes, and stuff like that. These things are expensive if you take it to the dealer. I suggest a local mechanic that specializes in Cadillacs.
The performance (Northstar Engine) and the quiet and comfortable ride.