Like HotRod said, it sounds like rings. Looks like time to rebuild the motor <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt='

'> (or at least replace that ring). As far as the car smoking, that is often caused by a bad headgasket, with coolant getting into the combustion chambers. What color smoke?