Thanks for the replies!
You have confirmed my thoughts that the 100bhp is the better option for a first car.
Drove both yesterday and thought the 100bhp was plenty quick enough, especially as there was three of us in the car.
Great little cars to drive - I would have loved one of those for my first car!
If he builds 3 years NCD and keeps a clean license then I have told him we will help him move to something a little more sporty - hopefully this will incentivise him to behave!
I don't like black boxes and don't trust them either - he will never comply and only make things worse! Also if I drive it...!
I will be looking for a low mileage 2013-16 Zetec S in white - not that many good ones around. Quite surprised how many of these have not been serviced!!