Hi all, I am looking at buying a 2000 STS. 80k miles but the engine was replaced at 50k. Is this a decent year to buy? From what I see the head gasket problem was fixed in the 2000 model year. I don't know why the engine was replaced but the current owner bought it as a lemon buy back from GM in 2004. He used a GM crate motor as a replacement. A friend of mine told me not to buy anything but 2003 or up but he did not know why. It is just something he has heard in the past. Is there a better year for engines and transmissions than others? I am looking for something reliable for my wife to drive to work. I want the body style of the 2000's.