Alistair Darling's pre-Budget report could help cut the number of car insurance claims in the UK, according to the Institute of Advanced Motorists (IAM).The group explained the economic downturn had resulted in a reduction in new vehicle sales which tend to have better safety features than their older counterparts.It added people are keeping their vehicles for longer and not carrying out basic maintenance or repairs.Neil Greig, director at IAM, said: "While a brand new vehicle may be the last thing consumers contemplate in a downturn, the increased safety features of newer vehicles are going to have a beneficial effect."He claimed the reduction in VAT announced by Mr Darling may encourage people to invest in more up-to-date models.Mr Greig also pointed out plans to start improving the motorway network in 2009 instead of 2011 could also help cut the number of accidents on UK roads.Meanwhile, IAM recently urged motorists to allow extra time for journeys during the winter when the weather is bad.