Are older drivers more dangerous?
24 September 2013 Last updated at 07:59 BST
There are now four million people over the age of 70 with UK driving licences, according to the RAC Foundation.
Every three years, those over 70 have to fill in a self-assessment form saying they are fit to get behind the wheel.
Dave Guest has been to meet one 75-year-old who has been brushing up on his driving skills.