More than three-quarters of seasoned motorists failed a driving test in a challenge to test the skills of older drivers.
Those who failed to pass the test scored an average of three major faults and 16 minor faults.
Just one major fault – or more than 15 minor faults – can fail a candidate taking the official DVLA examination.
In the research, conducted by an insurance firm, one motorist drove at 40mph in a 30mph zone, and another failed to see the kerb when doing a three-point turn.
Another failed to spot a pedestrian by not properly checking their blind spot, forcing them to move back onto the pavement.
Direct Line said complacent driving and a lack of concentration at the wheel could be caused by an over-reliance on driving aids such as parking sensors and blind spot monitors.
Motor director Rob Miles said: “While drivers gain experience with age, it’s easy to pick up bad habits that could be potentially dangerous and put other road users at risk.
“Driving aids are becoming increasingly common and when used correctly, can result in a safer, more-comfortable driving experience.
“However, it’s important that drivers don’t rely too heavily on these aids, as it can be to the detriment of both their overall ability and concentration on the road ahead.”
Research by the firm among 4000 UK drivers revealed that 68 per cent rely on driving aids behind the wheel, with almost half using a sat nav.
Direct Line chose 50 drivers from those who identified themselves as being experienced behind the wheel.
Norman Lawrence from Kemnay, Aberdeenshire, passed his advanced driving test last year at the age of 95.
The retired businessman said: “Over the years some drivers do fall in to bad habits.
“Nobody is perfect on the roads, so perhaps more people should take the advanced driving test.
“But the question is how many of them would pass?
“There’s no question that driving is much more difficult these days because of the volume of traffic – you have to keep your wits about you and your speed down.”
A poll conducted by Auto Trader last year found three in five motorists think older drivers should be made to retake the driving test when they reach 66.
At present, drivers have to apply to renew their licence when they turn 70.