Staged licences and different coloured P plates to match or even number plates
eg
Stage 1 - Heavily restriced power to weight ratio
Stage 2 - Medium - must include more stringent testing
Stage 3 - Non restricted - Heavy testing, driver evaluation and training
In the end, if peopl want to drive like nut bags, they WILL drive like nut bags. These types of people need to be nipped in the bud before they get behind the wheel.