" Self Certification of competence at 70 "
we get that now, it is no longer sufficient. I have a friend who has stated their eyesight is good when I know it isn't, a proper eye test is paramount.
The driving test should definitely involve Motorway driving. At the moment you can pass the test never having gone over 30 in a town center, then jump straight into a car and go down the motorway at 70 mph.
The Motorway bit could be voluntary you only do it if you want to use Motorways. I know a lot of people who NEVER drive on a motorway and would be quite happy to have a licence that did not allow it.