In July 2004, Stagecoach announced the acquisition of the M8 Motorvator Glasgow to Edinburgh express service from Lanarkshire firm, Longs Coaches. This pitched Stagecoach in fierce and direct competition from Scottish Citylink, a company Stagecoach ironically operated vehicles for under a franchise agreement. Stagecoach continued to use the distinctive M8 Motorvator brand on this route, with vehicles wearing a red and off-white livery, and was operated by Stagecoach Glasgow Ltd. Some seats on the Motorvator service were available for purchase through the low-cost Stagecoach subsidiary Megabus. Both companies offered fast, frequent and affordable express services along the M8 motorway corridor between the two Scottish cities, a situation that continued until 13 September 2005. On that date, Stagecoach and Citylink parent company ComfortDelGro announced a joint venture in the provision of express coach services in Scotland. Under the terms of the agreement, Stagecoach would take a 35% stake in Citylink in return for certain rights to the Megabus brand in Scotland. This ended competition between the two operators and the withdrawal of the Motorvator brand. Stagecoach has resumed operating vehicles for Citylink under a franchise agreement, and many vehicles that operated as Motorvator now wear Citylink livery. However this sale is being investigated by the office of fair trading.