While BR's board had approved the ordering of a single Class 89 for demonstration purposes, the Strategy Committee queried why the locomotive had been favoured over a proposed 80-tonne Bo-Bo locomotive. At this time, the Class 89 had been allegedly thought to be a low-risk option for multi-purpose operations, but offered little in the way of performance advantages over the existing Class 87. It was clear that additional electric locomotives were necessary no matter what, as both the 1950s era and electric locomotives were nearing the end of their viable service lives and had become quite unreliable. The Intercity 225 was at one point intended to address this need for multipurpose traction, the prequalification document included a requirement for it to perform mixed-traffic duties, including day and night passenger duties, as well as handling parcel and mail traffic and overnight heavy freight services. Appraisals had also determined that the Class 89 was comparatively inferior in financial terms to the Intercity 225, which decreased the likelihood of the former ever attaining quantity production.