RE: Stagecoach North East: Service Suggestions
There used to be a service E3 which ran between South Shields and Sunderland via Westoe, Horsley Hill, Marsden, Whitburn, Seaburn and Roker. It was withdrawn about 18 years ago. The reason for E6 is because it ran in competition with Catch A Bus service 6. Both CAB 6 and E6 ran the exact same routes.