Dashcam footage has emerged from the UK of a group of extremely reckless "boy racers" being dealt swift justice for their dangerous driving.<br /><br />The video shows several motorists weaving dangerously at high speed between cars on a road in Southport on June 1. <br /><br />Further down the road, one of the vehicles can be seen pulled over to the side of the road by police.<br /><br />"Yes! Well done!" the filmer can be heard exclaiming.