330ci Blown Head Gasket
I have recently bought an '01 330ci that has about 76,000 miles on it. The head gasket is blown and the mechanic that looked at it told me that the motor oil may be "burnt" so the entire motor needs to be replaced. Does that sound reasonable? The car actually appears to run okay except for the white smoke. (The guy only ran it for a few seconds. It started right up.) What are my options if the motor needs to be replaced? If not, what should replacing the head gasket cost me?
Thanks in advance.