VEHICLE management data provider David Henley Systems has published details of leasing industry residual value predictions showing differences of more than £1,000 from the price guides.

DHS's revised Interfirm Comparison product provides rentals, residual values and maintenance costs on more than 3,500 vehicles based on leasing industry information. Details from 15 companies are compared on a quarterly basis. The company believes its comparisons offer a more accurate barometer than publications such as CAP Monitor and Glass's Guide's Fleet Values & Wholelife Costs.

CAP chief economist Mark Cowling said: 'CAP Monitor takes a purist view - there are no commercial interests involved in our forecasting. We make forecasts based on industry expertise and economic expertise. The IFC is reporting what a certain sector of the market is doing and I think that probably all the companies involved in the comparison used CAP Monitor as their starting point when setting their residual values.'