More than two thirds of drivers have not checked their tyre treads (68%) or engine oil levels (68%). In addition, six out of 10 (60%) haven't tested their tyre pressures and two thirds (67%) haven't looked at their lights.
In contrast, almost half of drivers (43%) have ensured their vehicles have looked the part by cleaning them during this time.
The number of unsafe vehicles may be exacerbated by the extension of MOT expiry dates. This extension could be leaving many cars, vans and motorcycles unchecked, potentially allowing unroadworthy vehicles to be driven.
Despite this, many drivers plan to take long journeys using their car as lockdown restrictions ease. One in five (20%) plan to use their car to travel to a holiday destination in another part of the UK in the next three months, while one in ten (10%) will use their car to drive to the countryside.
Top concerns for motorists as lockdown eases
Aviva's research also reveals that almost two thirds (62%) of UK motorists are nervous about driving as the UK's lockdown restrictions continue to ease.
More than a quarter of drivers are worried about increased traffic if people avoid using public transport (27%). A fifth of motorists are also worried pedestrians may step out without looking after being accustomed to quieter roads (19%), while one in eight (13%) are concerned there will be more delivery vehicles out and about.
The findings also suggest Government efforts to reduce the spread of coronavirus by restricting use of public transport may accelerate permanent changes to workers' commuting habits.
Sarah Applegate, Head of Global Strategy and Insight at Aviva comments:
"This latest research reveals motorists' caution about driving as lockdown conditions ease. Drivers will inevitably be using their cars more often as restrictions lift and non-essential shops start to reopen, so they should prepare for this by ensuring their vehicles are up to scratch.