ok just to clear up my earlyer mess up i belive fgw along with a few other opperators are trying to get hold of some dvt's as to where they would be used i have no idea but it makes sence to use one loco and a dvt rather that the cost of two locos or one and doing a run around at end destinations
DBS» did intend to replace one of the class 67s on the Taunton - Cardiff diagram with a
DVT‡.