Groups of cars block intersections for limos, ride on bonnets at school balls Groups of cars block intersections for limos, ride on bonnets at school balls Wed, 19 May 2021, 2:16PM A dangerous new school ball trend is seeing huge convoys of cars with blaring music blocking intersections for limousines as they "escort" students to the venue while people ride on the bonnets or hang out windows, according to a limo company owner. The Herald has received video footage of young people riding on the bonnets of cars as they swerve dangerously in and out of traffic on the way to the Westlake Girls' school ball at Eden Park last weekend - behaviour police have described as reckless.