I've been a Caddy owner for over 20 years and never had a real problem with them until I got the "Northstar" engine in my 1994 Sedan Deville. At approximately 60000 miles I got a service engine soon light and took it to the dealer. I was told the oil pan gasket had to be replaced. Now on a regular auto replacing the oil plan gasket is a $100 job. On the Northstar the entire engine has to be pulled out of the car and the engine dismantled. Total cost: $2200.00 At approximately 72000 miles I got a service soon signal when the car seemed to drop out of gear. When to the dealer and was told the computer cable assembly between the "Northstar" engine and the tranmission had gone bad. The entire transmission had to be pulled and the assembly replaced. Total cost: $1900.00. I've now spent on these two things over $4100 on an automobile that is supposed to go 100,000 before it needs regular maintainence. I call Cadillac about both problems and really got the run around from them. They would not give me a phone number to call them back at since they are on some type of "rotary" system. Could never talk to the same person about the problems. In the past Cadillac had been helpful when I had a transmission problem on a 1986 I had they paid half the repair cost even though the car had been out of warranty for 8500 miles. Anyway Im not big on this "Northstar" engine. Seems more problems with 2000 Northstar from what I hear and see on this board.