Older drivers 'aren't dangerous'
At present, the Government is considering introducing compulsory eyesight and driving ability tests for motorists over the age of 75.
The IAM study shows that as car drivers grow older, the become less of a risk to other road users and less likely to be injured in road accidents themselves.
However, any injuries they sustain are likely to be more sever due to age-related frailty.
Neil Greig, director of the IAM Motoring Trust, said: 'All too often, older drivers are criticised for poor driving standards and for being a danger on our roads. The statistics explode that myth.
'Older drivers have a wealth of motoring experience and knowledge and the vast majority self-regulate their driving in relation to their ability.'
By 2021, there will be an estimated three million drivers over the age of 70 on Britain's roads.
Drivers must renew their licences at the age of 70 and every three years thereafter. The applicant is legally obliged to tell the DVLA of any condition that could impair their ability behind the wheel.