Complex sentence: 'Part 2' is a test of the candidates driving ability and lasts for one hour covering many types of roads and conditions, a high level of competence is required and all manoeuvres are tested.
Split into simpler sentences: 'Part 2' is a test of the candidate's driving ability and lasts for one hour covering many types of roads and conditions. A high level of competence is required and all manoeuvres are tested.