My dad always taught me when i was learning to drive... "Any Idiot can drive a car fast, or accelerate hard. But a Truly experienced driver, knows how to stop it in a hurry" good advice.... Most (not all) but most p-platers arent experienced, but yes still very good advice from your dad. :D I would say that I experience a minimum of 7-8 p-platers every morning and afternoon, 5 days a week when I drop my son off to highschool. I learnt very very quickly to arrive early to drop him off and late to pick him up if I wish for myself and my car to leave unscathed. :( I still cannot see that limiting the kw will make a major difference.