Fleet managers need to take a pro-active approach to vehicle selection following the introduction of the new Worldwide harmonized Light vehicles Test Procedure (WLTP) or face escalating fleet costs, warns FleetVision.

The fleet and mobility consultancy business says that fleets could face additional costs if they do not make the right vehicle selections now within their fleet choice lists.

“We are advising taking immediate action to avoid a rise in operating costs across the fleet,” said Thibault Alleyn, global consulting director at FleetVision.

“Otherwise, fleet managers could face additional costs on vehicles which will continue to be on their books for several years to come.”

There are a number of measures fleets could consider in ensuring their policy lists are adjusted for the new WLTP figures. Alleyn explains:

“The first is to review the CO2 limit that has been set for the existing fleet policy and assess whether existing vehicles are capable of remaining within that limit under the new WLTP tests. This is especially valid for plug-in hybrid vehicles, which suffer the most.

“The second is to review the existing vehicle selection criteria and calculation formula, taking into account the WLTP values for each vehicle, and question whether this needs amending to ensure a future-proof selection method.

“Thirdly, fleet managers need to look at vehicle segments and engine sizes to assess which are the most affected in terms of higher emissions under the new WLTP rules. Some existing vehicles may automatically disqualify themselves from choice lists, which means having to evaluate the most suitable alternatives.

“And fourthly, fleet managers need to look at equipment levels and options that are available to drivers on their choice lists, as some increase CO2 emissions under WLTP, which takes equipment into account. These include, amongst others, larger wheels, automatic gearboxes, sunroofs, air conditioning and tow bars.”

The new WLTP regulations relate to all new cars registered from September 1 and, since that date, only WLTP-type approved cars have been available for sale.

CO2 emission figures are generally accepted to be higher than those published under the old emissions testing system. Many experts have identified at least a 25% increase in the CO2 emissions values between the NEDC-correlated figure and WLTP, a discrepancy which will widely increase registration and annual road tax costs and drivers’ tax bills over time.