Total of 18,782 vehicles were registered January to June - up 23% on 2012
IAA member companies operate a combined fleet of 2,500 vehicles
June values upped £530 month-to-month and £669 year-on-year
Managing Director Ashley Sowerby gives his expert opinion
Bodies welcome Boris Johnson's Road Task Force report
North-west company Evolve Facility Services are the benefactors
Course based on best practice guidelines for operation of vans and LCVs
However, fleet and lease values improved to second-highest level ever
Firm report a 15% fuel saving across 1,100-strong fleet
Group believes average motorist could up fuel efficiency by 20%