" Those in snazzier, higher-status cars were four times more likely to cut off some guy driving a beat-up van,"

This is NOT a wise thing to do. If I were the person in the beat up van, and somebody tried to cut me off in a new car, what do I have to lose, compared to Mr. Nice Car? Conversely, when I lived in Houston, my DD was a 60s model IHC pickup w/o a straight panel on it. Funny how the traffic opened up to let me change lanes....