Were i live the worst offenders for speeding are the scooby,supras, mr2,s etc and in particuler some twot in a soarer tt ,i live opposite a school on a very straight strecth of road .the corsa brigade are noisy and annoying but because there engines are small they are very slow, it is the second generation modders with there turbos and dump valves in the high performance cars that cause the problem most of them are going through a second youth and reaching speeds of up to 80mph in a 30 mph limit .as tony said they have the money to take there cars to silly bhp and some of them have no respect for the limit at all .