Sentence 1: I stopped at the red light and heard a car revving its engine. 
 Sentence 3: When the light went green we were out of the gate 
 Sentence 4:  It was a close race until the other drive rear-ended a parked car 
 Sentence 5:  Really my grandmother should have known not to race me like that 
 Option 1: It was an old neighbor waving hello and off she went. 
 Option 2: The driver to my right was challenging me to a race!