Regarding the 24v Batmobile going to fast I have had another toothed drive pulley drilled out and fitted to the motor .This one has 24 teeth the old one had 30 giving me a top speed of about 35 mph (to fast) .Now the new one has decreased the speed to about 25 mph and given more torque . I Also increased the acceleration on the controller (There was a delay). Just needs another run out....Photo's to follow ....