The Student Room Group

Reply 1

The insurance and rental cost is usually sky-high if you're under 25, and if you're renting abroad I believe you have to be over 21.

Reply 2

some places you have to be 21 min

Reply 3

As a blanket rule, you're unlikely to be able to hire a car over here under 21.
However, temporary insurance is something you might consider, I think norwich union do it, online as well. So you could borrow a friend's/family member's car and get insured for like a week... If that's at all helpful, depends what you need a car for!