The American team has made big revisions to the sidepod, engine cover bodywork and floor of the VF-23 ahead of the final five races of the current campaign, in the process becoming the final F1 squad to switch to Red Bull's downwash sidepod design path.
But with little time between the Qatar and United States Grand Prix flyaway rounds and with lengthy customs checks in the former to consider, the team opted not to assemble the new parts on its cars at its Banbury base.
