The cost of car insurance for a 20-year-old in the UK can vary greatly, depending on a variety of factors. Your age, gender, location, experience, the type of car you drive, and the insurer you choose can all affect your premium. Generally speaking, a 20-year-old might be expected to pay around £2,000 - £3,000 per year for comprehensive car insurance.
That said, there are a number of ways to reduce your insurance costs as a young driver - some of the most popular include opting for a black box insurance policy, adding an experienced driver to the policy, increasing the voluntary excess, and driving a car in a lower insurance group.
It's important to shop around for car insurance and to compare different quotes to get the best deal for you. Consider using price comparison websites to find a cheaper policy and make sure you read any policy documents carefully to make sure it meets your needs.