Sentence:  The <WSD>car</WSD> was just about to us , its driver 's fat , solemn face intent on the road ahead , on business , on a family in Sante Fe - on anything but an old pick-up truck in which two human beings desperately needed rescue . 
Meaning of the word marked with <WSD> tags:  a motor vehicle with four wheels; usually propelled by an internal combustion engine