Millions of motorists suffer memory blanks while behind the wheel, it has been revealed.
As many as 24% of drivers arrive at destinations - such as their workplace - with no recollection of their journey, a survey found from car insurance company Churchill.
As many as 5% have had accidents as a result of losing concentration, while 48% of male drivers said they were most likely to "switch off" when driving on a motorway.
Based on responses from 2,788 motorists, the survey showed:
:: 12% of school-run drivers have crashed at least once in the last year while driving on "autopilot".
:: Those travelling to work by car are most likely to have reached a destination with no memory of the drive itself.
:: Distractions, such as children in the car, taking work calls, thinking about family problems and listening to the radio, mean that 25% of drivers regularly break the speed limit.
:: 13% brake far too late and 12% don't give way to other drivers, while 5% say they sometimes end up driving in the middle of the road and 2% do not stop at pedestrian crossings through inattention.
:: On average, Britons make eight journeys on familiar routes every week and it is on those routes that motorists minds wander the most.
Frances Browning, spokesperson for Churchill Car Insurance, said: "Driving has become habitual as we are so reliant on the car in our everyday lives.
"The stresses and strains of everyday life, mean that many motorists end up with motoring memory blanks - the consequences of which can seriously impact getting from A to B safely."
