I watched this on the BBC i-player. Thought provoking & felt sorry for the lass who lost the use of her legs. Dont know how you can make new(young) drivers safety conscious(exuberance/excitement of youth etc). Think it would be sensible to restrict newly qualified car drivers to a certain BHP limit.
Dont believe P or L plates warrant any consideration from other road users-other than to make them want to get past at all costs. When I rode a friends 125cc with L-plates I was horrified at the attitude of other drivers even when I was making legal progress.