We get similar type problems around here at times with boy racers using common land to drive on. I normally just get the car registration and report it to the police on 101 number. the police can issue a section 59 notice which is basically a ASBO for driving in an agressive way or in a way to cause distress to others. If they re offend the police can seize and crush the car. Seems to work for us and the police generally respond to reports of these cars, but it does help if you are on the local commoners committee as no action can result in a pointed letter to the police commissioner.
penntor
penntor