The Fiat Punto’s car horn has the beep that causes most stress to motorists, according to new findings out today from AXA. In a unique experiment, its horn had the most profound effect on people’s heart rate, skin conductance and brain activity – key stress indicators. The findings of the experiment kicks off a wider ‘Respect on the Road’ campaign that will highlight the effect of disrespectful driving behaviours and encourage greater courtesy on British roads. The majority of drivers (79%) feel there is a lack of respect on the roads today and nearly half (48%) view a horn honked in anger as the 2nd most disrespectful thing another driver could do to them. More