I have just been reading about the wagon trains to California in 1849. On the plains they would spread up to five wagons abreast but when the road narrowed through rocks or a gorge they would race to get in front. They would whip the bullocks, throw things at other drivers, shout, swear and even draw pistols and threaten one another. As one of the diarists record “ all for the saving of two and half minutes in a six month journey”. So what we have today is something inherent in young male drivers. I wonder how it evolved?