Son is 17 next week. He has 6k saved for a car. We really need him to drive as we live very rurally with no public transport and he has a sister and brother with a disability that go to school in the opposite direction to his college. He knows we need him to drive and that we want him to have a decent car due to how unsafe the roads are around us. How do people go about getting sharing such a high cost between themselves and their 17 year old. Obviously will be reviewed at the end of a levels. He has a part time job.