I have recently bought a 1997 catera, which I now realize is probably the stupidest things I could have done. The good thing is that I only paid $1400 for it. The radiator light is on, and it smokes from under the hood. cadillac tells me that it could either be a $400 problem or a $1400 problem, but he has to charge me $75 to tell me. All assistance would be greatly appreciated.